The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-337-5947, 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. Government technical data includes 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-337-5947 |
| Primary Part Number | BACB30UU5-6 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Fastener Length | 0.814 INCHES MINIMUM AND 0.844 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.454 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 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 |
|---|---|
| BACB30UU5-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30UU5-6 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BACB30UU5-6 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30UU5-6 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30UU5-6 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30UU5-6 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| BACB30UU5-6 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30UU5-6 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| BACB30UU5-6 | Federal Manufacturing Corp (USA) |
| Reference | Meaning |
|---|---|
| BACB30UU5-6 | 5/9 Secondary reference U.S. Government activity |
| BACB30UU5-6 | 5/9 Secondary reference U.S. Government activity |
| BACB30UU5-6 | 5/9 Secondary reference Huck International, Inc |
| BACB30UU5-6 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-337-5947 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-337-5947 has 9 manufacturer part numbers on file: BACB30UU5-6 (Sps Technologies, Llc Dba PB Fasteners), BACB30UU5-6 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BACB30UU5-6 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30UU5-6 (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30UU5-6 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 4 more.
Key specifications for BACB30UU5-6: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN. 19 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.