The Holder,optical Element, cataloged under National Stock Number 1240-01-498-7954, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1240-01-498-7954 |
| Primary Part Number | 5613074-1 |
| Item Name | Holder,optical Element |
| FSC / FSG | 1240 / 12 — Optical Sighting and Ranging Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment | ANODIZE |
| Material | ALUMINUM ALLOY |
| 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 |
|---|---|
| 5613074-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 5613074 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 1240-01-498-7954 is a Holder,optical Element, manufactured by Naval Sea Systems Command, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
NSN 1240-01-498-7954 has 1 manufacturer part number on file: 5613074-1 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 1240-01-498-7957. Verify interchangeability with system specifications before substitution.
Key specifications for 5613074-1: Overall Length: 2.311 INCHES NOMINAL IN; Overall Width: 1.263 INCHES MINIMUM AND 1.267 INCHES MAXIMUM IN; Special Features: FILTER HOLDER ENGRAVED WITH "B" ON BOTH SIDES. OVERALL THICKNESS IS .180 IN. CUTOUT DIA IS 1.006 MAX. IN; Surface Treatment: ANODIZE. 2 specifications are 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 1240-01-498-7954 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.