The Pin-Rivet, cataloged under National Stock Number 5320-01-174-6254, 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 18 specifications, cited from the U.S. Government catalog. The record lists 15 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5320-01-174-6254 |
| Primary Part Number | HP4759-4-4 |
| 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 |
| Head Height | 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN |
| Fastener Length | 0.635 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.255 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| 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 | 0.387 INCHES MINIMUM AND 0.412 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 |
|---|---|
| HP4759-4-4 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| HLT50YB-8-4 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HLT50YB-8-4 PRIMARY | Hi-Shear Corporation (USA) |
| HLT50YB-8-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT50YC-8-4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT50YC-8-4 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT50YC-8-4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT50YB-8-4 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HLT50YB-8-4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HLT50YB-8-4 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT50YC-8-4 PRIMARY | Huck International, Inc (USA) |
| HLT50YB-8-4 PRIMARY | Huck International, Inc (USA) |
| HLT50YC-8-4 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HLT50YC-8-4 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HLT50YC-8-4 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HLT50YC-8-4 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M759C4-4 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| HLT50YB-8-4 | 5/9 Secondary reference U.S. Government activity |
| HLT50YB-8-4 | 3/2 Design control — primary reference U.S. Government activity |
| AIC-L-759C4-4 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| 10112063 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| MA4759C4-4 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| HLT50YC-8-4 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-174-6254 is a Pin-Rivet, manufactured by Heartland Precision Fasteners Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-174-6254 has 15 manufacturer part numbers on file: HP4759-4-4 (Heartland Precision Fasteners Inc), HLT50YB-8-4 (West Coast Aerospace, Inc.), HLT50YB-8-4 (Hi-Shear Corporation), HLT50YB-8-4 (Sps Technologies, Llc Dba PB Fasteners), HLT50YC-8-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 10 more.
1 possible match (shared part number, not a government interchangeability claim): 5935-01-629-8804. Verify interchangeability with system specifications before substitution.
Key specifications for HP4759-4-4: Shank Diameter: 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: SOLID FILM AND CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.059 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN; Fastener Length: 0.635 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN. 18 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.