The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-447-5074, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-447-5074 |
| Primary Part Number | 123-4403550 PIECE 37 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Flange Diameter | 2.1250 INCHES NOMINAL IN |
| Corner Radius | 0.06250 INCHES NOMINAL IN |
| Length | 0.7031 INCHES NOMINAL IN |
| Flange Thickness | 0.1875 INCHES NOMINAL IN |
| Thread Length | 1.0000 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | FLANGED |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STANDOFF |
| Diameter | 1.6250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 1.0000 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | ROUND |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 8 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | NICKEL ALLOY 400 STANDOFF |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| 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 |
|---|---|
| 123-4403550 PIECE 37 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
NSN 5340-01-447-5074 is a Standoff,threaded,spacing, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-447-5074 has 1 manufacturer part number on file: 123-4403550 PIECE 37 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 123-4403550 PIECE 37: Flange Diameter: 2.1250 INCHES NOMINAL IN; Corner Radius: 0.06250 INCHES NOMINAL IN; Length: 0.7031 INCHES NOMINAL IN; Flange Thickness: 0.1875 INCHES NOMINAL IN. 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.