The Bolt,buffer,base Assembly, cataloged under National Stock Number 5306-00-989-3408, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5306-00-989-3408 |
| Item Name | Bolt,buffer,base Assembly |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL STEEL,O/A LG 15,125,THD EXTERNALL 0.750-16,UNF,RIGHT-HAND,THD LG 1.250 IN.UNTHREADED PORTION 0.188 DIA,HEAD OD 1.375,SHAFT OD 0.656,SLOT WIDTH 0.250,DEPTH 0.188 IN. IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| D210A | 3/9 Design control — primary reference Mkt Geotechnical Systems |
| 020-1000 | 5/9 Secondary reference Mkt Geotechnical Systems |
NSN 5306-00-989-3408 is a Bolt,buffer,base Assembly, classified under FSC 5306, Bolts. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5305-01-207-1287. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-00-989-3408: General Characteristics Item Description: MATERIAL STEEL,O/A LG 15,125,THD EXTERNALL 0.750-16,UNF,RIGHT-HAND,THD LG 1.250 IN.UNTHREADED PORTION 0.188 DIA,HEAD OD 1.375,SHAFT OD 0.656,SLOT WIDTH 0.250,DEPTH 0.188 IN. IN. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.