The Screw,close Tolerance, cataloged under National Stock Number 5305-01-522-0081, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Boeing Defence Australia Ltd. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-522-0081 |
| Primary Part Number | BACB30NT3K13 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Boeing Defence Australia Ltd |
| Status | ACTIVE |
| Head Height | 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Fastener Length | 1.142 INCHES MINIMUM AND 1.172 INCHES MAXIMUM IN |
| Thread Length | 0.345 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.803 INCHES MINIMUM AND 0.823 INCHES MAXIMUM IN |
| Grip Diameter | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM OVERALL |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Quantity Per Inch | 32 |
| Material | TITANIUM ALLOY UNS R56400 OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN |
| 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 |
|---|---|
| BACB30NT3K13 | Boeing Defence Australia Ltd (AUS) |
| BACB30NT3K13 | Huck International, Inc (USA) |
| BACB30NT3K13 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BACB30NT3K13 | Hi-Shear Corporation (USA) |
| BACB30NT3K13 | Boeing Defence Australia Ltd Div Defense, Space & Security (AUS) |
| BACB30NT3K13 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| Reference | Meaning |
|---|---|
| BACB30NT3K13 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-522-0081 is a Screw,close Tolerance, manufactured by Boeing Defence Australia Ltd, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-522-0081 has 6 manufacturer part numbers on file: BACB30NT3K13 (Boeing Defence Australia Ltd), BACB30NT3K13 (Huck International, Inc), BACB30NT3K13 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), BACB30NT3K13 (Hi-Shear Corporation), BACB30NT3K13 (Boeing Defence Australia Ltd Div Defense, Space & Security) and 1 more.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-669-3971. Verify interchangeability with system specifications before substitution.
Key specifications for BACB30NT3K13: Head Height: 0.122 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN; Fastener Length: 1.142 INCHES MINIMUM AND 1.172 INCHES MAXIMUM IN; Thread Length: 0.345 INCHES NOMINAL IN; Nominal Thread Diameter: 0.190 INCHES IN. 14 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.