The Guide,block, cataloged under National Stock Number 2030-01-158-2154, is classified within Federal Supply Class 2030 (Deck Machinery) of the Ship and Marine Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 2030-01-158-2154 |
| Primary Part Number | 709-4684913 ITEM 25 |
| Item Name | Guide,block |
| FSC / FSG | 2030 / 20 — Deck Machinery |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL QQ-S-763 CL 304 COND A,WEDGE SHAPED BLOCK 75 DEGREE ANGLE,3.240 IN. OUTSIDE RADIUS,3.188 IN. THK,1 HOLE 0.531 IN. DIA IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 709-4684913 ITEM 25 PRIMARY | Naval Sea Systems Command (USA) |
| 709-4684913ITEM 25 | L.m. Gill Welding & Manufacturing, L.l.c. Dba Lm Gill Welding & Manufacturing Llc (USA) |
| Reference | Meaning |
|---|---|
| 87832-1642 ITEM 25 | 3/2 Design control — primary reference U.S. Government activity |
NSN 2030-01-158-2154 is a Guide,block, manufactured by Naval Sea Systems Command, classified under FSC 2030, Deck Machinery. Status: active.
NSN 2030-01-158-2154 has 2 manufacturer part numbers on file: 709-4684913 ITEM 25 (Naval Sea Systems Command), 709-4684913ITEM 25 (L.m. Gill Welding & Manufacturing, L.l.c. Dba Lm Gill Welding & Manufacturing Llc).
Key specifications for 709-4684913 ITEM 25: General Characteristics Item Description: STEEL QQ-S-763 CL 304 COND A,WEDGE SHAPED BLOCK 75 DEGREE ANGLE,3.240 IN. OUTSIDE RADIUS,3.188 IN. THK,1 HOLE 0.531 IN. DIA 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.
NSN 2030-01-158-2154 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.