The Screw,close Tolerance, cataloged under National Stock Number 5305-01-413-2663, 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 18 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-413-2663 |
| Primary Part Number | 124379-8-37 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Fastener Length | 3.032 INCHES MINIMUM AND 3.079 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.735 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 3.038 INCHES MINIMUM AND 3.058 INCHES MAXIMUM IN |
| Grip Diameter | 0.5302 INCHES MINIMUM AND 0.5307 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 26000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORQUE-SET RIBBED |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | NICKEL ALLOY 718 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.951 INCHES MINIMUM AND 1.014 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 |
|---|---|
| 124379-8-37 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| PBF1475-8-37 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VCL0009-8-37 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| GB510FG8-37 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
NSN 5305-01-413-2663 is a Screw,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-413-2663 has 3 manufacturer part numbers on file: 124379-8-37 (Sps Technologies, Llc Dba PB Fasteners), PBF1475-8-37 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VCL0009-8-37 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
Key specifications for 124379-8-37: Fastener Length: 3.032 INCHES MINIMUM AND 3.079 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.735 INCHES NOMINAL IN; Material Document and Classification: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 18 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.