The Standoff,threaded,snap-in, cataloged under National Stock Number 5340-01-428-5927, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-428-5927 |
| Primary Part Number | 4581-832-SS-20 |
| Item Name | Standoff,threaded,snap-in |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
| Status | ACTIVE |
| Length | 1.250 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-F-14072C MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.375 INCHES NOMINAL RIGHT INTERNAL IN |
| Thread Length | 0.437 INCHES NOMINAL LEFT EXTERNAL IN |
| Distance From End to Groove | 0.363 INCHES NOMINAL IN |
| Style Designator | GROOVED W/ LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | ASTM A581 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A582 FED SPEC 2ND MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 0.164 INCHES RIGHT INTERNAL IN |
| Nominal Thread Size | 0.164 INCHES LEFT EXTERNAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Quantity Per Inch | 32 RIGHT INTERNAL |
| Thread Quantity Per Inch | 32 LEFT EXTERNAL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT INTERNAL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT EXTERNAL |
| Groove Width | 0.012 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 4581-832-SS-20 PRIMARY | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4581-0832-SS-20 | 5/9 Secondary reference Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
NSN 5340-01-428-5927 is a Standoff,threaded,snap-in, manufactured by Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-428-5927 has 1 manufacturer part number on file: 4581-832-SS-20 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc).
Key specifications for 4581-832-SS-20: Length: 1.250 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-F-14072C MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.375 INCHES NOMINAL RIGHT INTERNAL IN; Thread Length: 0.437 INCHES NOMINAL LEFT EXTERNAL IN. 16 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.