The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-606-0636, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. The record lists 13 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Hi-Shear Corporation (CAGE 73197); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Valley-Todeco, Inc. Dba Arconic Fastening Systems (CAGE 06710); B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (CAGE 1EM77) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-606-0636 |
| Primary Part Number | ST3M753L5-21 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| 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 |
|---|---|
| AIC763L5-21 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| MB156L5-21 | Hi-Shear Corporation (USA) |
| 122897L5-21 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VFK600L5-21 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GS1032L5-21 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M753L5-21 | Houston Precision Fasteners I Lp (USA) |
| HP7753L5021 | Heartland Precision Fasteners Inc (USA) |
| ST3M75L5-21 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| PBF1267L5-21 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| SLB255L-21 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| S343L5-21 | Huck International, Inc (USA) |
| VS3190L5-21 | Howmet Global Fastening Systems Inc (USA) |
| ST3M753L5-21 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 122897L5-21 | 5/9 Secondary reference Sps Technologies Inc |
| 122997L5-21 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-606-0636 is a Bolt,close Tolerance, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-606-0636 has 13 manufacturer part numbers on file: AIC763L5-21 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), MB156L5-21 (Hi-Shear Corporation), 122897L5-21 (Sps Technologies, Llc Dba PB Fasteners), VFK600L5-21 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GS1032L5-21 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 8 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.