The Screw,close Tolerance, cataloged under National Stock Number 5305-01-062-3348, 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. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-062-3348 |
| Primary Part Number | BACB30UW5P40 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| 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 |
| Fastener Length | 2.939 INCHES MINIMUM AND 2.969 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416, TY2CL2 ALUMINUM PIGMENTED COATING FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| Thread Length | 0.429 INCHES MINIMUM AND 0.479 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Internal Drive Style | HIGH-TORQUE |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.428 INCHES MINIMUM AND 0.479 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 |
|---|---|
| BACB30UW5P40 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| BACB30UW5P40 | Howmet Global Fastening Systems Inc (USA) |
| BACB30UW5P40 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| BACB30UW5P40 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30RF5P40 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BACB30UW5P40 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BACB30UW5P40 | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| BACB30RF5P40 | 5/9 Secondary reference Huck International, Inc |
| BACB30RF5P40 | 5/9 Secondary reference U.S. Government activity |
| BACB30UW5P40 | 7/2 Vendor item drawing reference U.S. Government activity |
| BACB30RF5P40 | 5/9 Secondary reference Hi-Shear Corporation |
| BACB30RF5P40 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BACB30RF5P40 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| BACB30UW5P40 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-062-3348 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-062-3348 has 7 manufacturer part numbers on file: BACB30UW5P40 (Sps Technologies, Llc Dba PB Fasteners), BACB30UW5P40 (Howmet Global Fastening Systems Inc), BACB30UW5P40 (Howmet Global Fastening Systems Inc Div City of Industry Operations), BACB30UW5P40 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), BACB30RF5P40 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 2 more.
Key specifications for BACB30UW5P40: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Fastener Length: 2.939 INCHES MINIMUM AND 2.969 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.