The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-536-4435, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (CAGE 1EM77); The Boeing Company Div Defense (CAGE 76301); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Howmet Global Fastening Systems Inc (CAGE 06950) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-536-4435 |
| Primary Part Number | 3M1277E4D6A |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 3M1277E4D6A PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 3M1277E4D6A PRIMARY | The Boeing Company Div Defense (USA) |
| TX1027E4D6XA | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| TX1027E4D6XA | Sps Technologies, Llc Dba PB Fasteners (USA) |
| TX1027E4D6XA | Howmet Global Fastening Systems Inc (USA) |
| 3M1277E4D6A PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 3M1277E4D6A | Houston Precision Fasteners I Lp (USA) |
| 3M1277E4D6A PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| 11861E4D6A | Reid Products Inc. Dba Reid Products Inc (USA) |
| TX1027E4D6XA | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 3M1277E4D6A PRIMARY | Heartland Precision Fasteners Inc (USA) |
| TX1027E4D6XA | Hi-Shear Corporation (USA) |
| 3M1277E4D6A PRIMARY | Saturn Fasteners Inc (USA) |
| WC1277E4D6A | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| TX1027E4D6XA | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| 3M1277E4D6A | 5/9 Secondary reference Camcar Llc Div Camcar Llc |
| TX1027E4D6XA | 5/9 Secondary reference Sps Technologies Inc |
| TX1027E4D6XA | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-536-4435 is a Bolt,close Tolerance, manufactured by B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-536-4435 has 14 manufacturer part numbers on file: 3M1277E4D6A (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), 3M1277E4D6A (The Boeing Company Div Defense), TX1027E4D6XA (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), TX1027E4D6XA (Sps Technologies, Llc Dba PB Fasteners), TX1027E4D6XA (Howmet Global Fastening Systems Inc) and 9 more.
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.