The Pin-Rivet, cataloged under National Stock Number 5320-01-231-7548, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Heartland Precision Fasteners Inc. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 13 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-231-7548 |
| Primary Part Number | HP4760-4-21 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Heartland Precision Fasteners Inc |
| Status | ACTIVE |
| Shank Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Fastener Length | 1.697 INCHES MINIMUM AND 1.717 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | CROWN COUTERSUNK GREATER THAN 135 DEGREES |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.2500 INCHES IN |
| Grip Length | 1.317 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Shear Strength | 125000 SINGLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.5018 INCHES MINIMUM AND 0.5066 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 |
|---|---|
| HLT53YC-8-21 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT53YC-8-21 | Hi-Shear Corporation (USA) |
| HLT53YB-8-21 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HP4760-4-21 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| HLT53YC-8-21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT53YB-8-21 | Hi-Shear Corporation (USA) |
| HLT53YB-8-21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT53YB-8-21 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT53YB-8-21 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HLT53YC-8-21 | West Coast Aerospace, Inc. (USA) |
| HLT53YC-8-21 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT53YC-8-21 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC-L-760C4-21 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| HLT53YC-8-21 | 5/9 Secondary reference U.S. Government activity |
| HLT53YC-8-21 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| HLT53YC-8-21 | 5/2 Secondary reference U.S. Government activity |
| MA4760-4-21 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HLT53YB-8-21 | 3/2 Design control — primary reference U.S. Government activity |
| HLT53YB-8-21 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| ST3M760C4-21 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HLT53YB-8-21 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-231-7548 is a Pin-Rivet, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-231-7548 has 13 manufacturer part numbers on file: HLT53YC-8-21 (Sps Technologies, Llc Dba PB Fasteners), HLT53YC-8-21 (Hi-Shear Corporation), HLT53YB-8-21 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HP4760-4-21 (Heartland Precision Fasteners Inc), HLT53YC-8-21 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 8 more.
Key specifications for HP4760-4-21: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Fastener Length: 1.697 INCHES MINIMUM AND 1.717 INCHES MAXIMUM IN; Material Document and Classification: AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 17 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.