The Screw,close Tolerance, cataloged under National Stock Number 5305-01-706-5519, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies Llc Dba PB Fasteners Div PB Fasteners. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5305-01-706-5519 |
| Primary Part Number | PBF1165B4-12 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.015 INCHES NOMINAL IN |
| Fastener Length | 1.105 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-83488 TYPE II,CLASS 3 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-L-46010,TYPE I APPLIED OVER ALUMINUM COATING MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.370 INCHES NOMINAL IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT FILLISTER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.750 INCHES NOMINAL IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM AND LUBRICANT OVERALL |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.507 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 |
|---|---|
| PBF1165B4-12 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| H044B4-12 PRIMARY | Huck International, Inc (USA) |
| 121557-4-A12B | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VT1693AS4-12 | Howmet Global Fastening Systems Inc (USA) |
| AIC984B4-12 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| PBF116B4-12 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| C7984 | 7/2 Vendor item drawing reference U.S. Government activity |
| VT1693AS4-12 | 3/2 Design control — primary reference U.S. Government activity |
| 121557-4-A12B | 3/2 Design control — primary reference U.S. Government activity |
| C7984B4-12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-706-5519 is a Screw,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-706-5519 has 5 manufacturer part numbers on file: PBF1165B4-12 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), H044B4-12 (Huck International, Inc), 121557-4-A12B (Sps Technologies, Llc Dba PB Fasteners), VT1693AS4-12 (Howmet Global Fastening Systems Inc), AIC984B4-12 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-706-7686. Verify interchangeability with system specifications before substitution.
Key specifications for PBF1165B4-12: Head Height: 0.015 INCHES NOMINAL IN; Fastener Length: 1.105 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-83488 TYPE II,CLASS 3 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-L-46010,TYPE I APPLIED OVER ALUMINUM COATING MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.370 INCHES NOMINAL IN. 20 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.