The Screw Assembly,panel, cataloged under National Stock Number 5305-01-362-4459, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-362-4459 |
| Primary Part Number | 171549H01 |
| Item Name | Screw Assembly,panel |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.100 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 0.355 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC 2ND TREATMENT RESPONSE STAND-OFF |
| Material Accommodated Thickness | 0.049 INCHES MINIMUM AND 0.059 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5636 ASSN STD SINGLE MATERIAL RESPONSE FASTENER |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OR AMS 4122 ASSN STD SINGLE MATERIAL RESPONSE STAND-OFF |
| Nominal Thread Diameter | 0.132 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PASSIVATE FASTENER |
| Surface Treatment | CHROMATE OR ANODIZE STAND-OFF |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 302 FASTENER |
| Material | ALUMINUM ALLOY 7075 STAND-OFF |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.250 INCHES MINIMUM AND 0.290 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 |
|---|---|
| FT1255P-6-1-7 | Fastener Technology Corp (USA) |
| 171549H01 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| DP-7950-6-A-7 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| DP-7950-6-A-7 | 5/9 Secondary reference U.S. Government activity |
| 171549H01 | 5/9 Secondary reference Fastener Technology Corp |
NSN 5305-01-362-4459 is a Screw Assembly,panel, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-362-4459 has 3 manufacturer part numbers on file: FT1255P-6-1-7 (Fastener Technology Corp), 171549H01 (Northrop Grumman Systems Corporation), DP-7950-6-A-7 (Huck International, Inc).
Key specifications for 171549H01: Head Height: 0.100 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 0.355 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE FASTENER; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC 2ND TREATMENT RESPONSE STAND-OFF. 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.