The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-101-8573, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Positronic Industries Inc Div Amphenol Military Aerospace Operations. Government technical data includes 8 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-101-8573 |
| Primary Part Number | 12H3-04-X16C |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Positronic Industries Inc Div Amphenol Military Aerospace Operations |
| Status | ACTIVE |
| Width Across Flats | 0.187 INCHES NOMINAL IN |
| Length | 1.000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-F-14072, FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Style Designator | INTERNALLY THREADED FULL LENGTH |
| Material Document and Classification | ASTM A581 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape | HEXAGON |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 12H3-04-X16C PRIMARY | Positronic Industries Inc Div Amphenol Military Aerospace Operations (USA) |
| Reference | Meaning |
|---|---|
| 8111-SS-0440-7 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| SM-C-772734-3 | 7/2 Vendor item drawing reference U.S. Government activity |
| 13153423-2 | 7/2 Vendor item drawing reference Us Army Aviation and Missile Command |
| 8111SS0440-7 | C/1 Advisory reference — outside the item-of-supply concept Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware |
| 8111SS0440-7 | 5/9 Secondary reference New Haven Mfg Corp Amatom Electronic Hardware Div |
| 952584-1 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| 860314-67 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 5340-00-101-8573 is a Standoff,threaded,spacing, manufactured by Positronic Industries Inc Div Amphenol Military Aerospace Operations, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-101-8573 has 1 manufacturer part number on file: 12H3-04-X16C (Positronic Industries Inc Div Amphenol Military Aerospace Operations).
1 possible match (shared part number, not a government interchangeability claim): 5895-01-058-3634. Verify interchangeability with system specifications before substitution.
Key specifications for 12H3-04-X16C: Width Across Flats: 0.187 INCHES NOMINAL IN; Length: 1.000 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OR MIL-F-14072, FINISH E300 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: INTERNALLY THREADED FULL LENGTH. 8 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.