The Pin-Rivet, cataloged under National Stock Number 5320-01-109-3151, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5320-01-109-3151 |
| Primary Part Number | BACB30MB8-25 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Shank Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.077 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Fastener Length | 1.947 INCHES MINIMUM AND 1.967 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 1.567 INCHES MAXIMUM IN |
| Width Between Flats | 0.0947 INCHES MINIMUM AND 0.0967 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.415 INCHES MINIMUM AND 0.440 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 |
|---|---|
| BACB30MB8-25 | West Coast Aerospace, Inc. (USA) |
| BACB30MB8-25 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| BACB30MB8-25 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30MB8-25 PRIMARY | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| HL20PB-8-25 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30MB8-25 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL20PB-8-25 PRIMARY | Hi-Shear Corporation (USA) |
| HL20PB-8-25 | West Coast Aerospace, Inc. (USA) |
| BACB30MB8-25 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL20PB-8-25 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HL20PB-8-25 | 5/9 Secondary reference U.S. Government activity |
| HL20PB-8-25 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| HL20PB-8-25 | 5/9 Secondary reference Huck International, Inc |
| HL20PB-8-25 | 5/9 Secondary reference U.S. Government activity |
| HL20PB-8-25 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| BACB30MB8-25 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-109-3151 is a Pin-Rivet, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-109-3151 has 9 manufacturer part numbers on file: BACB30MB8-25 (West Coast Aerospace, Inc.), BACB30MB8-25 (Howmet Global Fastening Systems Inc), BACB30MB8-25 (Sps Technologies, Llc Dba PB Fasteners), BACB30MB8-25 (Howmet Global Fastening Systems Inc Div City of Industry Operations), HL20PB-8-25 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 4 more.
Key specifications for BACB30MB8-25: Shank Diameter: 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.077 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Fastener Length: 1.947 INCHES MINIMUM AND 1.967 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.