The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-457-0234, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Accurate Screw Machine Corp Div Accurate Screw Machine Corporation. Government technical data includes 14 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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-457-0234 |
| Primary Part Number | 1934-SS-187-12 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
| Status | ACTIVE |
| Length | 0.1870 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OR ASTM-A-380-78 ASSN STD SINGLE TREATMENT RESPONSE STANDOFF |
| Thread Length | 0.1870 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Material Document and Classification | ASTM-A-693 ASSN STD SINGLE MATERIAL RESPONSE OR AMS-5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 0.1640 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.1640 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Cross-Sectional Shape | ROUND |
| Surface Treatment | PASSIVATE STANDOFF |
| Thread Class | 2A LEFT INTERNAL (INCLUDES THRU THREAD) A |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Material | STEEL CORROSION RESISTING 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 |
| Part Number | Manufacturer |
|---|---|
| 1934-SS-187-12 PRIMARY | Accurate Screw Machine Corp Div Accurate Screw Machine Corporation (USA) |
NSN 5340-01-457-0234 is a Standoff,threaded,spacing, manufactured by Accurate Screw Machine Corp Div Accurate Screw Machine Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-457-0234 has 1 manufacturer part number on file: 1934-SS-187-12 (Accurate Screw Machine Corp Div Accurate Screw Machine Corporation).
Key specifications for 1934-SS-187-12: Length: 0.1870 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-F-14072 MIL SPEC SINGLE TREATMENT RESPONSE OR ASTM-A-380-78 ASSN STD SINGLE TREATMENT RESPONSE STANDOFF; Thread Length: 0.1870 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN; Style Designator: INTERNALLY THREADED FULL LENGTH. 14 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.