The Rivet,solid, cataloged under National Stock Number 5320-00-003-4178, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Precision Form Rivet Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-003-4178 |
| Primary Part Number | R3676-4-20 |
| Item Name | Rivet,solid |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Precision Form Rivet Inc |
| Status | ACTIVE |
| Shank Diameter | 0.124 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Head Height | 0.054 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | FMS-0116,COMP 2219-T81,FSCM 81755 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | UNIVERSAL |
| Shank Style | STRAIGHT W/RADIUS CHAMFERED TIP |
| Surface Treatment | ANODIZE OVERALL |
| Shear Strength | 36000 SINGLE POUNDS PER SQUARE INCH |
| Material | ALUMINUM ALLOY OVERALL |
| Head Major Diameter | 0.238 INCHES MINIMUM AND 0.262 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| R3676-4-20 PRIMARY | Precision Form Rivet Inc (USA) |
| Reference | Meaning |
|---|---|
| C089-4-20 | 7/2 Vendor item drawing reference U.S. Government activity |
| 5320PL1721682 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| X4762-4-20 | 5/9 Secondary reference U.S. Government activity |
| 5320PL1388581 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 5320PL1050576 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| P093-4-20 | 5/9 Secondary reference U.S. Government activity |
| X4762-4-20 | 5/9 Secondary reference Allfast Fastening Systems, Llc |
NSN 5320-00-003-4178 is a Rivet,solid, manufactured by Precision Form Rivet Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-003-4178 has 1 manufacturer part number on file: R3676-4-20 (Precision Form Rivet Inc).
Key specifications for R3676-4-20: Shank Diameter: 0.124 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN; Head Height: 0.054 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.