generic-NAS, solid rivet
MS20470 solid rivet
MS20470 / MS20426 solid rivet: universal and 100-degree countersunk heads, driven from both sides.
- Shear 28-53 ksi
- Access Two-sided
- Diameters 0.0625 to 3/8"
- Materials Aluminum, Titanium
- Lead-time risk Low
Two-sided, solid rivet: “CORRECT SHAPE FOR RIVET SNAP OR SET. BUCKING BAR OR DOLLY.” (FAA AC 43.13-1B, p.4-21, Figure 4-6 (b) Riveting tools)
- Shear
- 28-53 ksi
- Blind bulb
- n/a
- Install
- Both sides needed
- Diameters
- 0.0625, 3/32, 1/8, 5/32, 3/16, 0.21875, 1/4, 5/16, 3/8"
- Lead-time risk (SpecLok assessment)
- Low
Typical applications
- ·Metal structure with access to both sides (AC 43.13-1B)
Strengths
- +Standard part (MS20470 / MS20426; AC 43.13-1B para 4-57)
- +Driven shear strengths published in MIL-HDBK-5J Table 8.1.2(b)
Trade-offs
- −Requires access to BOTH sides (bucking)
- −Not for composite: laminates can't support formed-fastener installation stresses (MIL-HDBK-17-3F §6.3.3.3)
- −Lower strength than blind bolts and pin-and-collar (MIL-HDBK-5J Table 8.1.2(b))
Also called AN470, universal head rivet, solid rivet. P/N: MS20470 / AN470 · e.g. MS20470AD4-5
Datasheet strength: As-driven Fsu: AD (2117) 30 ksi, B (5056) 28, D (2017) 38, DD (2024) 41 ksi: MMPDS-02 Table 8.1.2(b), reproduced in Cherry CA-1032.
Standards
- MS20470
- MS20426
Materials and galvanic compatibility vs CFRP
| Alloy | Shear | vs CFRP | Notes | Source |
|---|---|---|---|---|
| Aluminum | 30 ksi | high | AD (2117-T3); also B 5056 (28), D 2017 (38), DD 2024 (41), E 7050 (43) | MIL-HDBK-5J Table 8.1.2(b) driven Fsu; 7050 per MMPDS-02 via CA-1032 |
| Titanium | 53 ksi | low | T (45Cb titanium-columbium) | MMPDS-02 Table 8.1.2(b), reproduced in Cherry CA-1032 |
vs CFRP: MIL-STD-889C Table I, graphite column: high = incompatible in all environments; low = compatible except sea-water immersion; unrated = SpecLok has not read a rating for this material.About derived ksi
Specs source: MS20470H spec sheet + MIL-HDBK-5J Table 8.1.2(b) ↗: MS20470H Table I: sizes 1/16"-3/8", material codes; MIL-HDBK-5J p.8-13 driven shear strength. Lead-time risk is SpecLok's sourcing assessment, not a datasheet value.
2 head styles
Not redrawn: no head dimensions for this variant in the documents on file. The data at right is from the cited document.
Universal head
- MS20470: Material code letter, e.g. AD = 2117-T aluminum alloy (AN470 superseded by MS20470)MS20470H spec sheet, Table I ↗
Source: FAA AC 43.13-1B, para 4-57a(4) ↗
Head styles (manufacturer terms)
- Universal head (MS20470)
- 100-degree countersunk head (MS20426)
Solid · 3 steps
1/3Shank protrudes
“1½D (1D MIN.)”
FAA AC 43.13-1B, p.4-21, Figure 4-6 (a) Dimensions for formed rivet heads ↗
Drawing traced from: (a), before driving.
Source images (4): patent and government drawings
A patent drawing shows the patented design, which can differ in detail from today's catalog part. Each image says why it is tied to this family.
Official manufacturer install demonstration: MS20470 solid rivet installation.
Installation verification and preload
Installed preload
Not applicable: driven solid rivets are not preload-controlled fasteners (AC 43.13-1B).
What to check after install
- Shank protrusion before driving: 1.5D nominal (1D minimum).
- Driven (shop) head: diameter 1.5D minimum; height 0.65D nominal (0.5D minimum) (AC 43.13-1B Fig 4-6(a)).
- Reject per the Fig 4-6(c) defect chart: slanted rivet or bucking bar, flat-sided head, too-short body, rivet clinched between plates, bulged plates, over-driven head, tool-damaged plate, cracked head.
Check gauges (1) and sources.Details
- Driven-head dimensions measured directly (scale/calipers); rivet gauges are shop-made or commercial 1.5D/0.5D go-gauges.
Sources: FAA AC 43.13-1B, para 4-57 / Fig 4-6. Acceptance limits belong to the controlling spec; verify against your program's process documentation.
- Tool
- Rivet gun and bucking bar
- Special / proprietary
- Standard tooling
- Training
- Not stated in the cited documents.
- Inspection
- Driven head dimensions per AC 43.13-1B Fig. 4-6.
Driven head min 1.5D diameter and 0.5D height, 0.65D nominal (AC 43.13-1B Fig. 4-6(a)). MIL-HDBK-17-3F §6.3.1: special composite fasteners "eliminated the use of rivets" in composite.
The published install tool and nose for each size, other access options, and the gauges that check the install, from the manufacturer's own tool tables.
Tool: Rivet gun and bucking bar
Rivet gun and bucking bar, or squeeze. No tool part numbers are published in AC 43.13-1B for these rivets.
Full tool tables, envelopes, clearances and source notesCompare tooling burden across all 25 families
FAA AC 43.13-1B, Par 4-52 b (Disassembly Prior to Repairing)
- “When rivets are removed, undercut rivet heads by drilling. Use a drill of the same size as the diameter of the rivet. Drilling must be exactly centered and to the base of the head only.” FAA AC 43.13-1B, p.4-12, Par 4-52 b ↗
- “After drilling, break off the head with a pin punch and carefully drive out the shank.” FAA AC 43.13-1B, p.4-12, Par 4-52 b ↗
- “On thin or unsupported metal skin, support the sheet metal on the inside with a bucking bar.” FAA AC 43.13-1B, p.4-12, Par 4-52 b ↗
Cautions
- “Removal of rivet heads with a cold chisel and hammer is not recommended because skin damage and distorted rivet holes will probably result.” FAA AC 43.13-1B, p.4-12, Par 4-52 b ↗
Also published: FAA-H-8083-31B (AMT Handbook, Airframe), Removal of Rivets and Figure 4-98
- “File a flat area on manufactured head” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-46, Figure 4-98 Rivet removal ↗
- “Center punch flat” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-46, Figure 4-98 Rivet removal ↗
- “Drill through head using drill one size smaller than rivet shank” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-46, Figure 4-98 Rivet removal ↗
- “Remove weakened head with machine punch” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-46, Figure 4-98 Rivet removal ↗
- “Punch out rivet with machine punch” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-46, Figure 4-98 Rivet removal ↗
Cautions
- “When a rivet has to be replaced, remove it carefully to retain the rivet hole’s original size and shape. If removed correctly, the rivet does not need to be replaced with one of the next larger size.” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-44, Removal of Rivets ↗
- “When removing a rivet, work on the manufactured head. It is more symmetrical about the shank than the shop head, and there is less chance of damaging the rivet hole or the material around it.” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-44, Removal of Rivets ↗
- “On thin metal or unsupported structures, support the sheet with a bucking bar while driving out the shank. If the shank is unusually tight after the rivet head is removed, drill the rivet about two-thirds through the thickness of the material and then drive the rest of it out with a drift punch.” FAA-H-8083-31B (AMT Handbook, Airframe), p.4-45, Removal of Rivets ↗
None of the removal procedures on file gives a composite-specific removal caution. The Monogram specs address composite at the hole instead: holes "reasonably round and free from burrs (metallic structure) and delamination (graphite/epoxy type structure)" (MBF2003 §5.1).
P/N series MS20470 / AN470 · e.g. MS20470AD4-5Paste a full part number into the decoder.
- Manufacturer
- generic-NAS
- Category
- Solid rivet
- Datasheet (PDF) ↗
- MS20470H spec sheet + MIL-HDBK-5J Table 8.1.2(b) ↗: MS20470H Table I: sizes 1/16"-3/8", material codes; MIL-HDBK-5J p.8-13 driven shear strength.
Find the part number for your stack
SpecLok has no dash-number table for this family yet: the quote line goes out as the family, part number to be confirmed.
Sourcing
Lead-time risk (SpecLok sourcing assessment): Low
Get quotes: SpecLok sources this from authorized distributors and returns price, lead time and certs.You buy from the authorized distributor, who is named on your returned quote. SpecLok is free for buyers.
Supply signalfor this family
- 2,412 NSNs carry a part number of this family, recorded by 63 CAGE codes (FLIS, March 2025).
- Last DoD award for RIVET,SOLID items (FSC 5320): 2026-06-26; 793 awards since 2025-10-01.
- No SpecLok quotes yet.
A signal from records SpecLok holds, not availability, stock or a lead-time promise. FLIS lists who has recorded a part number for the item, not who makes it today. DoD awards carry no NSN or part number, so award activity is for the item name's class.
Sources: DLA FLIS Data Electronic Reading Room (PUB LOG) ↗, DLA PUB LOG ↗, USAspending.gov award search API ↗; DoD award data 2025-10-01 to 2026-07-06; compiled 2026-09-28.
Image credits: MS20470 Rev H (Rivet, Solid, Universal Head, Aluminum Alloy and Titanium Columbium Alloy), sheet 1, via EverySpec ↗
Sources (10)
- FAA AC 43.13-1B
- MS20470H spec sheet + MIL-HDBK-5J Table 8.1.2(b)
- MS20470 solid rivet installation video
- FAA-H-8083-31B (AMT Handbook, Airframe)
- MIL-HDBK-5J Table 8.1.2(b) driven Fsu; 7050 per MMPDS-02 via CA-1032
- MMPDS-02 Table 8.1.2(b), reproduced in Cherry CA-1032
- MIL-STD-889C Table I, graphite column: high = incompatible in all environments; low = compatible except sea-water immersion; unrated = SpecLok has not read a rating for this material.
- DLA FLIS Data Electronic Reading Room (PUB LOG)
- DLA PUB LOG
- USAspending.gov award search API
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