The Insert,panel Fastener, cataloged under National Stock Number 5325-01-149-7507, is classified within Federal Supply Class 5325 (Fastening Devices) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5325-01-149-7507 |
| Primary Part Number | GS503C-SD8B |
| Item Name | Insert,panel Fastener |
| FSC / FSG | 5325 / 53 — Fastening Devices |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Flange Diameter | 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Features Provided | GROMMETGROMMET |
| Hole Diameter | 0.164 INCHES NOMINAL0.164 INCHES NOMINAL IN |
| Body Diameter | 0.309 INCHES NOMINAL0.309 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE OVERALL |
| Insert Style | FLUSH FLANGEFLUSH FLANGE |
| Material | ALUMINUM ALLOY OVERALL |
| Hole Type | PLAINPLAIN |
| Flange Thickness | 0.023 INCHES NOMINAL0.023 INCHES NOMINAL 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 |
|---|---|
| GS503C-SD8B | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| S104D8-1 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Tridair Products |
| S104D8-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5325-01-149-7507 is a Insert,panel Fastener, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5325, Fastening Devices. Status: active.
NSN 5325-01-149-7507 has 1 manufacturer part number on file: GS503C-SD8B (Northrop Grumman Systems Corporation).
Key specifications for GS503C-SD8B: Flange Diameter: 0.500 INCHES NOMINAL0.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Features Provided: GROMMETGROMMET; Hole Diameter: 0.164 INCHES NOMINAL0.164 INCHES NOMINAL IN. 10 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.