The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-481-3976, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is DC Fabricators Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-481-3976 |
| Primary Part Number | CW-2300DFPN23-613 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | DC Fabricators Inc |
| Status | ACTIVE |
| Fastener Length | 2.500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 1.500 INCHES IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 12 |
| Material | NICKEL ALLOY 500 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| CW-2300DFPN23-613 PRIMARY | DC Fabricators Inc (USA) |
| CW-182P PRIMARY | DC Fabricators Inc (USA) |
| Reference | Meaning |
|---|---|
| CW-2300DF | D/9 Drawing number reference only DC Fabricators Inc |
NSN 5305-01-481-3976 is a Screw,cap,socket Head, manufactured by DC Fabricators Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-481-3976 has 2 manufacturer part numbers on file: CW-2300DFPN23-613 (DC Fabricators Inc), CW-182P (DC Fabricators Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5306-01-481-4048, 5307-01-481-7510, 5330-01-711-0580. Verify interchangeability with system specifications before substitution.
Key specifications for CW-2300DFPN23-613: Fastener Length: 2.500 INCHES NOMINAL IN; Material Document and Classification: QQ-N-286,CLASS A FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nominal Thread Diameter: 1.500 INCHES IN; Part Name Assigned by Controlling Agency: SCREW,SOCKET SET (SPECIAL). 7 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.