The Pin-Rivet, cataloged under National Stock Number 5320-00-101-5566, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-101-5566 |
| Primary Part Number | HL645YE-10-11 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Fastener Length | 1.1875 INCHES MINIMUM AND 1.2075 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATED OVERALL |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3125 INCHES IN |
| Grip Length | 0.6875 INCHES MINIMUM AND 0.6975 INCHES MAXIMUM IN |
| Width Between Flats | 0.1270 INCHES MINIMUM AND 0.1295 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.4689 INCHES MINIMUM AND 0.4739 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 |
|---|---|
| HL645YE-10-11 PRIMARY | Hi-Shear Corporation (USA) |
| HL645YE-10-11 | Satair A/s (DNK) |
| HL645YE-10-11 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL645YE-10-11 | Huck International, Inc (USA) |
| HL645YE-10-11 | West Coast Aerospace, Inc. (USA) |
| HL645YE-10-11 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| HL645YE-10-11 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC-L-645-10-11 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| ST3M456C5-11 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HL645YE-10-11 | 5/9 Secondary reference U.S. Government activity |
| MA4456-5-11 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HL645LL10-11 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HL645YE-10-11 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-00-101-5566 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-101-5566 has 8 manufacturer part numbers on file: HL645YE-10-11 (Hi-Shear Corporation), HL645YE-10-11 (Satair A/s), HL645YE-10-11 (Sps Technologies, Llc Dba PB Fasteners), HL645YE-10-11 (Huck International, Inc), HL645YE-10-11 (West Coast Aerospace, Inc.) and 3 more.
1 possible match (shared part number, not a government interchangeability claim): 5320-01-643-5076. Verify interchangeability with system specifications before substitution.
Key specifications for HL645YE-10-11: Shank Diameter: 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN; Fastener Length: 1.1875 INCHES MINIMUM AND 1.2075 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED OVERALL; Head Style: FLUSH COUNTERSUNK. 15 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.