The Standoff,threaded,spacing, cataloged under National Stock Number 5340-01-416-5548, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lyn-Tron, Inc. Dba Lyn-Tron Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-416-5548 |
| Primary Part Number | AL6982-3.500-22 |
| Item Name | Standoff,threaded,spacing |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lyn-Tron, Inc. Dba Lyn-Tron Inc |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Length | 3.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.438 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Thread Length | 0.313 INCHES NOMINAL RIGHT EXTERNAL IN |
| Style Designator | LEFT INTERNAL AND RIGHT EXTERNAL THREAD |
| Thread Direction | RIGHT-HAND RIGHT EXTERNAL |
| Thread Direction | RIGHT-HAND LEFT INTERNAL (INCLUDES THRU THREAD) |
| Nominal Thread Size | 0.164 INCHES LEFT INTERNAL (INCLUDES THRU THREAD) IN |
| Nominal Thread Size | 0.164 INCHES RIGHT EXTERNAL IN |
| Cross-Sectional Shape | HEXAGON |
| Thread Class | 2A RIGHT EXTERNAL A |
| Thread Class | 2B LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Quantity Per Inch | 32 RIGHT EXTERNAL |
| Material | ALUMINUM ALLOY OVERALL |
| Right Projection Diameter | 0.164 INCHES NOMINAL IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD) |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL |
| Right Projection Length | 0.375 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 |
|---|---|
| AL6982-3.500-22 PRIMARY | Lyn-Tron, Inc. Dba Lyn-Tron Inc (USA) |
| Reference | Meaning |
|---|---|
| 210787 | 5/9 Secondary reference Northrop Grumman Corp Electronic Systems Defensive System Div |
NSN 5340-01-416-5548 is a Standoff,threaded,spacing, manufactured by Lyn-Tron, Inc. Dba Lyn-Tron Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-416-5548 has 1 manufacturer part number on file: AL6982-3.500-22 (Lyn-Tron, Inc. Dba Lyn-Tron Inc).
Key specifications for AL6982-3.500-22: Width Across Flats: 0.250 INCHES NOMINAL IN; Length: 3.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.438 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN. 20 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.