The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-385-0768, 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 15 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-385-0768 |
| Primary Part Number | 3549-C-632-B |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
| Status | ACTIVE |
| Width Across Flats | 0.245 INCHES NOMINAL IN |
| Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Thread Length | 0.526 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | PROJECTION ONE END |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.138 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Specification/standard Data | 80205-NAS1830 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | COPPER ALLOY OVERALL |
| Right Projection Diameter | 0.147 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Right Projection Length | 0.146 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 |
|---|---|
| 3549-C-632-B | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| Reference | Meaning |
|---|---|
| 3549C632B3 | 5/9 Secondary reference Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc |
| 350-3928-20-07-00 | 5/9 Secondary reference Interconnection Products Inc |
| NAS1830B04C06 | 5/2 Secondary reference U.S. Government activity |
| 671-003-9120 | 7/2 Vendor item drawing reference Honeywell International Inc. Div Aerospace - Torrance |
| B1531-C-3/8-11 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-385-0768 is a Standoff,threaded,spacing, manufactured by Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-385-0768 has 1 manufacturer part number on file: 3549-C-632-B (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc).
Key specifications for 3549-C-632-B: Width Across Flats: 0.245 INCHES NOMINAL IN; Length: 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN; Thread Length: 0.526 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Style Designator: PROJECTION ONE END. 15 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.