generic-NAS, blind rivet nut
Blind rivet nut (MS27130, now NAS1329 / NAS1330)
Blind-installed internally threaded rivet: a screw anchor in thin sheet from one side (MS27130, now NAS1329 / NAS1330).
- Shear No ksi rating (loads per datasheet)
- Access Blind (one-sided)
- Sizes .112-40UNC-3B to .500-20UN…
- Materials Aluminum, Carbon steel +2
- Lead-time risk Medium
Blind (one-sided), blind rivet nut: “The rivet nut is a blind installed, internally-threaded rivet invented in 1936 by the Goodrich Rubber Company for the purpose of attaching a rubber aircraft wing deicer extrusion to the leading edge of the wing.” (FAA-H-8083-31B (AMT Handbook, Airframe), p.4-55, Rivet Nut)
- Shear
- No ksi rating (loads per datasheet)
- Blind bulb
- n/a
- Install
- One-side install
- Sizes
- .112-40UNC-3B to .500-20UNF-3B (MS27130F Tables I and III)
- Lead-time risk (SpecLok assessment)
- Medium
Typical applications
- ·"Rivet nuts are used for the installation of fairings, trim, and lightly loaded fittings that must be installed after an assembly is completed." (FAA-H-8083-31B p.4-55)
- ·"Often used for parts that are removed frequently" (FAA-H-8083-31B p.4-55)
Strengths
- +"Installed by crimping from one side, the rivet nut provides a threaded hole into which machine screws can be installed." (FAA-H-8083-31B p.4-55)
- +Minimum tensile and single shear strength tabulated per thread size and material (MS27130F Table V)
Trade-offs
- −MS27130 is cancelled: "superseded by NAS1329 and NAS1330" (MS27130F Notice 1, 2001); the NAS sheets are not free and were not read
- −"SPECIAL PULL-UP TOOLS ARE REQUIRED" (MS27130F Note 2)
- −No removal procedure found in the documents read
Also called Rivnut, RIVNUT, rivet nut, blind rivet nut, MS27131. P/N: MS27130-[material][dash][K] · e.g. MS27130-A26K · superseded by NAS1329 (flat head) / NAS1330 (countersunk head)
Datasheet strength: MS27130F Table V, tensile strength / single shear strength, lbs min (AL ALY, STEEL, CRES, BRASS): .164: 415, 730, 980, 750 / 250, 500, 820, 475; .190: 525, 930, 1250, 950 / 320, 640, 1040, 610; .250: 980, 1580, 2140, 1720 / 600, 940, 1530, 1050 (MS27130F p.5). No torque-out, push-out or temperature is published on the sheet.
Standards
- MS27130 (cancelled 2001)
- NAS1329
- NAS1330
- MS27131 (cancelled 2001)
Materials and galvanic compatibility vs CFRP
| Alloy | Shear | vs CFRP | Notes | Source |
|---|---|---|---|---|
| Aluminum | n/a | high | "ALUMINUM ALLOY, GRADE 6053-T4 * (UNS A96053) ... *EXCEPT TEMPER. GRADE 6061-T6 (UNS A96061) ... MAY BE USED WHEN REQUIRED"; anodized per MIL-A-8625, Type II. Code A. | MS27130F p.5, Requirements 1b, 2b |
| Carbon steel | n/a | high | "STEEL, CARBON, GRADE 1008 ... GRADE 1010 ... GRADE 1108 ... OR GRADE 1110"; cadmium plated per QQ-P-416, Type II, Class 3. Code S. | MS27130F p.5, Requirements 1a, 2a |
| Stainless, 400 series (CRES 430) | n/a | unrated | "STEEL, CORROSION RESISTANT, TYPE 430 (UNS S43000)"; cleaned, descaled and passivated per ASTM A380. Code CR. | MS27130F p.5, Requirements 1c, 2c |
| Brass | n/a | unrated | "BRASS, ALLOY NO.260 (UNS C26000) OR ALLOY NO. 270 (UNS C27000) ... (FLAT HEAD ONLY)". Code B. "COUNTERSUNK HEAD NUTS SHALL NOT BE SPECIFIED IN BRASS MATERIAL." | MS27130F p.5, Requirement 1d, Note 5 |
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: MS27130F (Nut, plain, blind rivet, flat and countersunk head, open end) ↗: Tables I and III (dash, thread, grip range), Table II (install hole), Table V (tensile and single shear, lbs min), Requirements 1 to 5. Lead-time risk is SpecLok's sourcing assessment, not a datasheet value.
3 head styles
Some variants only partly sourcedNot redrawn: no head dimensions for this variant in the documents on file. The data at right is from the cited document.
Flathead
- MS27130: Code S steel (carbon), A aluminum alloy 6053-T4, CR corrosion resistant steel type 430, B brass (flat head only)Dash 1 to 74, .112-40UNC-3B to .500-20UNF-3B (Table I); the dash number sets thread and grip range. "K" after the dash = keyed nut.Open end. Countersunk-head nuts share the MS27130 base with dash 81 to 154 (Table III).
Sizes and grip: Dash 1 to 74 (Table I)
NAS1329 and NAS1330, which superseded MS27130 in 2001, are not free and were not read, so their part numbers and any NAS-only styles are not shown. MS27131 (closed end) is listed from its sheet notes only; its dash table was not transcribed.
Head styles (manufacturer terms)
- Flathead (MS27130)
- Countersunk head
- Flat head, closed end (MS27131)
Threaded mandrel, pulled · 4 steps
1/4On the mandrel
“Thread RIVNUT® onto the tool mandrel”
Böllhoff RIVNUT® catalog (US), p.4, How the RIVNUT® works ↗
Drawing traced from: Fig. 2, the rivet on the threaded draw rod.
Source images (3): 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.
Installation verification and preload
Installed preload
Not published. MS27130F gives minimum tensile and single shear strength (Table V) only; FAA-H-8083-31B and the Böllhoff RIVNUT catalog give no preload.
What to check after install
- "Correct installation requires good hole preparation, removal of burrs, and holding the sheets in contact while heading. Like any sheet metal fastener, a rivet nut should fit snugly into its hole." (FAA-H-8083-31B p.4-56)
- Install hole, MS27130F Table II (flathead), min-max: .112: .155-.157 (drill 5/32); .138: .189-.193 (#12); .164: .221-.226 (#2); .190: .250-.256 (E); .250: .332-.338 (Q).
- Grip: the dash number sets the grip range and ident mark (MS27130F Tables I and III); "The part number identifies the type of rivet nut and the maximum grip length." (FAA-H-8083-31B p.4-55)
- Keyed nuts (K) go in a keyway cut to the Keyway Detail (MS27130F Table II, P and H).
Check gauges (1) and sources.Details
- No inspection gauge is named in the documents read.
Sources: MS27130F · FAA-H-8083-31B p.4-55 to 4-56. Acceptance limits belong to the controlling spec; verify against your program's process documentation.
- Tool
- Pull-up tool with a threaded mandrel (Rivnut hand or power tools)
- Special / proprietary
- Special tooling
- Training
- Not stated in the cited documents.
- Inspection
- "Correct installation requires good hole preparation, removal of burrs, and holding the sheets in contact while heading. Like any sheet metal fastener, a rivet nut should fit snugly into its hole." (FAA-H-8083-31B p.4-56). No acceptance criteria are published in the documents read.
"SPECIAL PULL-UP TOOLS ARE REQUIRED FOR PROPER INSTALLATION. MANUFACTURER'S RECOMMENDATIONS SHOULD BE FOLLOWED" (MS27130F Note 2). Böllhoff: "Pull the tool trigger and the tool mandrel retracts causing the unthreaded portion of the RIVNUT® to expand behind the parent material riveting itself in place." (RIVNUT catalog p.4)
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.
Full tool tables, envelopes, clearances and source notesCompare tooling burden across all 25 families
Removal
No published removal procedure found; follow the manufacturer's instructions. Manufacturer page ↗
MS27130
84 sizes (thread size, grip range)
- Manufacturer
- generic-NAS
- Category
- Blind rivet nut
- Datasheet (PDF) ↗
- Manufacturer page ↗
- MS27130F (Nut, plain, blind rivet, flat and countersunk head, open end) ↗: Tables I and III (dash, thread, grip range), Table II (install hole), Table V (tensile and single shear, lbs min), Requirements 1 to 5.
Pick the part number
Sourcing
Lead-time risk (SpecLok sourcing assessment): Medium: Lead-time risk not yet assessed from sourcing data (default medium). Quoted by NAS1329 / NAS1330 and MS27130 part number.
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
- No FLIS records linked to this family yet.
- 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: Böllhoff, RIVNUT® The Original Blind Rivet Nut (US catalog), p.5 ↗. Product images belong to their manufacturers.
Sources (10)
- FAA-H-8083-31B (AMT Handbook, Airframe)
- MS27130F (Nut, plain, blind rivet, flat and countersunk head, open end)
- generic-NAS product page
- US 2,149,199 (Tubular rivet, B. F. Goodrich)
- MS27131C
- 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
- MS27130F Notice 1 (cancellation, 2001)
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