The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-657-7533, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Ian Edgar (liverpool) Ltd, T/a Edgar Brothers. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 — Screws (FSG 53) |
| Manufacturers | Ian Edgar (liverpool) Ltd, T/a Edgar Brothers (CAGE KCNE3); Nioa Trading Nioa Nominees Pty Limited Div Nioa (CAGE Z2C27) |
| Parameter | Value |
|---|---|
| NSN | 5305-01-657-7533 |
| Primary Part Number | 2400439 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Ian Edgar (liverpool) Ltd, T/a Edgar Brothers |
| Status | ACTIVE |
| 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 |
|---|---|
| 2400439 | Ian Edgar (liverpool) Ltd, T/a Edgar Brothers (GBR) |
| 2400439 | Nioa Trading Nioa Nominees Pty Limited Div Nioa (AUS) |
| Reference | Meaning |
|---|---|
| 5305PL2093650 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 2400439-R | C/1 Advisory reference — outside the item-of-supply concept Sig Sauer Inc. |
| 2400439 | 3/9 Design control — primary reference Sig Sauer Inc. |
NSN 5305-01-657-7533 is a Screw,cap,socket Head, manufactured by Ian Edgar (liverpool) Ltd, T/a Edgar Brothers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-657-7533 has 2 manufacturer part numbers on file: 2400439 (Ian Edgar (liverpool) Ltd, T/a Edgar Brothers), 2400439 (Nioa Trading Nioa Nominees Pty Limited Div Nioa).
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.