The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-409-0976, 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 23 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-409-0976 |
| Primary Part Number | 4532-632-SS-20 |
| 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 |
| Left Counterbore Depth | 0.375 MILLIMETERS NOMINAL MM |
| Width Across Flats | 0.312 INCHES NOMINAL IN |
| Length | 0.375 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.204 INCHES NOMINAL RIGHT EXTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Material Document and Classification | ASTM-A-581 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Left Counterbore Diameter | 0.138 MILLIMETERS NOMINAL MM |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.138 INCHES RIGHT EXTERNAL IN |
| Nominal Thread Size | 0.138 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A RIGHT EXTERNAL A |
| Thread Class | 3B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 RIGHT EXTERNAL |
| Material | STEEL COMP 203EZ OR STEEL COMP 303 OR STEEL COMP 416 OR STEEL COMP 430F OR STEEL COMP 430FSE OVERALL |
| Right Projection Diameter | 0.138 MILLIMETERS NOMINAL MM |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |
| Right Projection Length | 0.250 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| 4532-632-SS-20 PRIMARY | Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc (USA) |
| H50-0003-603 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA) |
| 710649-009 PRIMARY | Moog Inc Div Moog Inc., Space and Defense - Salt Lake City (USA) |
| 2037AS955-01 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 10113313 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5340-01-409-0976 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 5340-01-409-0976 has 4 manufacturer part numbers on file: 4532-632-SS-20 (Matthew Warren, Inc Dba Raf Electronic Hardware Div Raf Electronic Hardware, Llc), H50-0003-603 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), 710649-009 (Moog Inc Div Moog Inc., Space and Defense - Salt Lake City), 2037AS955-01 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 4532-632-SS-20: Left Counterbore Depth: 0.375 MILLIMETERS NOMINAL MM; Width Across Flats: 0.312 INCHES NOMINAL IN; Length: 0.375 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 23 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.