The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-958-8382, 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 15 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-958-8382 |
| Primary Part Number | STSBG003A10U028 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.125 INCHES NOMINAL IN |
| Head Height | 0.673 INCHES NOMINAL IN |
| Fastener Length | 2.884 INCHES NOMINAL IN |
| Extended Washer Diameter | 1.185 INCHES MINIMUM AND 1.195 INCHES MAXIMUM IN |
| Thread Length | 1.134 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.750 INCHES NOMINAL IN |
| Width Between Flats | 0.803 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN |
| Grip Diameter | 0.6230 INCHES MINIMUM AND 0.6240 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| STSBG003A10U028 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| STSBG003A10U028 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| STSBG003A10U028 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| STSBG003A10U028 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 11699A10U028 | Reid Products Inc. Dba Reid Products Inc (USA) |
| STSBG003A10U028 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| Reference | Meaning |
|---|---|
| LS5995-10-28 | 5/2 Secondary reference U.S. Government activity |
| STSBG003A10U028 | 3/2 Design control — primary reference U.S. Government activity |
| STSBG003A10U028 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-958-8382 is a Bolt,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-958-8382 has 6 manufacturer part numbers on file: STSBG003A10U028 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), STSBG003A10U028 (Sps Technologies, Llc Dba PB Fasteners), STSBG003A10U028 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), STSBG003A10U028 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), 11699A10U028 (Reid Products Inc. Dba Reid Products Inc) and 1 more.
Key specifications for STSBG003A10U028: Extended Washer Thickness: 0.125 INCHES NOMINAL IN; Head Height: 0.673 INCHES NOMINAL IN; Fastener Length: 2.884 INCHES NOMINAL IN; Extended Washer Diameter: 1.185 INCHES MINIMUM AND 1.195 INCHES MAXIMUM IN. 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.