The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-150-4931, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-150-4931 |
| Primary Part Number | PBF1041A5U011 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Head Height | 0.187 INCHES NOMINAL IN |
| Fastener Length | 1.022 INCHES MINIMUM AND 1.069 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | STS BS 000,LOCKHEED-GEORGIA CO MFR REF ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.335 INCHES MINIMUM AND 0.382 INCHES MAXIMUM IN |
| Material Document and Classification | H-11,STS BS000,FSCM 98897 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.687 INCHES NOMINAL IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL AND CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 132000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| PBF1041A5U011 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 11797A05U011 | Reid Products Inc. Dba Reid Products Inc (USA) |
| VAL23611-5D011 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC2263A05U011 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BM3200-5A011 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VS2978A05U011 | 5/9 Secondary reference U.S. Government activity |
| BM3200-5A011 | 5/9 Secondary reference U.S. Government activity |
| 68484-5A11 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 68484-5A11 | 3/2 Design control — primary reference U.S. Government activity |
| STSBG000A05U011 | 7/2 Vendor item drawing reference U.S. Government activity |
| VS2978A05U011 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
NSN 5306-00-150-4931 is a Bolt,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-150-4931 has 4 manufacturer part numbers on file: PBF1041A5U011 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 11797A05U011 (Reid Products Inc. Dba Reid Products Inc), VAL23611-5D011 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), AIC2263A05U011 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for PBF1041A5U011: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN; Head Height: 0.187 INCHES NOMINAL IN. 20 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.