Cherry, blind rivet
Cherry 1900 bulbing blind rivet
NAS1919/NAS1921 bulbing blind rivet whose large footprint Cherry rates suitable for composite.
- Shear 82-89 ksi
- Access Blind (one-sided)
- Diameters 1/8 to 3/16"
- Materials A286 CRES, Monel
- Lead-time risk Medium
Blind (one-sided), pulled-stem blind rivet: “BLIND SIDE HEAD MAY BE INSTALLED ON A 5° MAXIMUM SLOPE” (Cherry CA-1035 (Cherry 1900), p.3, CR1919 installed view)
- Shear
- 82-89 ksi
- Blind bulb
- large
- Install
- One-side install
- Diameters
- 1/8, 5/32, 3/16"
- Lead-time risk (SpecLok assessment)
- Medium
Typical applications
- ·Composite structures (CA-1035: "large blind side footprint is suitable for composite structures")
Strengths
- +Large blind side footprint, suitable for composite structures (CA-1035)
- +Flush break, no shaving; visible mechanical lock (CA-1035)
- +Uses existing single-action tooling (CA-1035)
Trade-offs
- −Installed strength is published in lbf only (CA-1035)
Also called NAS1919, NAS1921, composite blind rivet. P/N: CR1919 (protruding head) / CR1921 (flush head) · NAS1919 / NAS1921 · e.g. CR1919M04S05WU
Datasheet strength: Installed min single-shear 1,090 lb (1/8") to 2,400 lb (3/16"); datasheet gives lbf, not ksi: Cherry CA-1035.
Standards
- NAS1919
- NAS1921
Materials and galvanic compatibility vs CFRP
| Alloy | Shear | vs CFRP | Notes | Source |
|---|---|---|---|---|
| A286 CRES | 87 ksi | low | CR1919C/CR1921C A-286 sleeve & stem. Min single shear 1,090 lb (1/8"), 1,670 lb (5/32"), 2,400 lb (3/16") | Derived: CA-1035 min installed single shear ÷ nominal shank area (87-89 ksi); CA-1035 publishes lbf, not ksi |
| Monel | 82 ksi | low | CR1919M/CR1921M Monel sleeve. Min single shear 1,020 lb (1/8"), 1,565 lb (5/32"), 2,260 lb (3/16") | Derived: CA-1035 min single shear ÷ nominal shank area (82-83 ksi) |
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: Cherry CA-1035 (Cherry 1900 bulbing blind rivet) ↗: Features; CR1919/CR1921 minimum installed strength tables (lbf); material & finish table. 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.
Protruding head
- CR1919 · NAS1919: C = A-286 CRES sleeve; M = Monel sleeve (part number code)
Source: Cherry CA-1035 (Cherry 1900), "CR1919 protruding head" table; part number example ↗
Head styles (manufacturer terms)
- Protruding head (CR1919)
- 100° flush head (CR1921)
Pulled stem / bulbing · installed view
Sequence not shown: no public source for the intermediate stages. Installed view only.
Installed
“BLIND SIDE HEAD MAY BE INSTALLED ON A 5° MAXIMUM SLOPE”
Cherry CA-1035 (Cherry 1900), p.3, CR1919 installed view ↗
Drawing traced from: Installed view.
Installation verification and preload
Installed preload
Not published in CA-1035. The governing NAS1900 procurement spec is paywalled and was not verified; treat preload as unpublished.
What to check after install
- "Visible/Inspectable mechanical lock" (CA-1035). CA-1035 publishes no installed inspection limits; it states the rivets are "manufactured to NAS1919 and NAS1921" and meet the "NAS1900 procurement specification", which were not checked here.
- "Flush break eliminates need for shaving" (CA-1035).
- Recommended hole limits: -04 .129/.132", -05 .160/.164", -06 .192/.196" (CA-1035 tables).
Check gauges (1) and sources.Details
- No gauge is published in CA-1035.
Sources: CA-1035 catalog. Acceptance limits belong to the controlling spec; verify against your program's process documentation.
- Tool
- Single action tooling (CA-1035): -04, -05: G704B tool with H747-456 pulling head; -04, -05, -06: G83/G84 tool with H1900-456 pulling head ("additional tip needed for non-washer version")
- Special / proprietary
- Standard tooling
- Training
- Not stated in the cited documents.
- Inspection
- "Visible/inspectable mechanical lock"; "flush break eliminates need for shaving" (CA-1035).
"Uses existing single action tooling and Cherry 'One Tool Concept'"; "available with Cherry shift washer" (CA-1035).
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.
| Dia. | Published tool + nose | Other access | Gauges |
|---|---|---|---|
| -4 | G704B + H747-456 | None published | None published |
| -5 | G704B + H747-456 | None published | None published |
| -6 | G83/G84 + H1900-456 | None published | None published |
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 ↗
P/N series CR1919 (protruding head) / CR1921 (flush head) · NAS1919 / NAS1921 · e.g. CR1919M04S05WUPaste a full part number into the decoder.
- Manufacturer
- Cherry
- Category
- Blind rivet
- Datasheet (PDF) ↗
- Manufacturer page ↗
- Cherry CA-1035 (Cherry 1900 bulbing blind rivet) ↗: Features; CR1919/CR1921 minimum installed strength tables (lbf); material & finish table.
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): Medium
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
- 964 NSNs carry a part number of this family, recorded by 20 CAGE codes (FLIS, March 2025).
- Last DoD award for RIVET,BLIND items (FSC 5320): 2026-06-26; 3,082 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: Cherry Aerospace, Blind Rivets product page, Cherry® 1900 ↗. Product images belong to their manufacturers.
Sources (6)
- Cherry CA-1035 (Cherry 1900)
- Cherry product page
- 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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