The Clamp,prism, cataloged under National Stock Number 2040-00-972-8574, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. The manufacturer of record is L3 Technologies, Inc. Div L3 Keo. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Clamp,prism |
| FSC / FSG | 2040 — Marine Hardware and Hull Items (FSG 20) |
| Manufacturers | L3 Technologies, Inc. Div L3 Keo (CAGE 34228); Northrop Grumman Systems Corporation (CAGE 03956) |
| Parameter | Value |
|---|---|
| NSN | 2040-00-972-8574 |
| Primary Part Number | A547-529 |
| Item Name | Clamp,prism |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Manufacturer | L3 Technologies, Inc. Div L3 Keo |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| A547-529 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 002971 PRIMARY | L3 Technologies, Inc. Div L3 Keo (USA) |
| 547A002971 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A547-529 | 5/9 Secondary reference Chatham Precision Inc |
| 002971 | 5/9 Secondary reference Chatham Precision Inc |
| 547A002971 | C/1 Advisory reference — outside the item-of-supply concept L3 Technologies, Inc. Div L3 Keo |
NSN 2040-00-972-8574 is a Clamp,prism, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
NSN 2040-00-972-8574 has 3 manufacturer part numbers on file: A547-529 (L3 Technologies, Inc. Div L3 Keo), 002971 (L3 Technologies, Inc. Div L3 Keo), 547A002971 (Northrop Grumman Systems Corporation).
1 possible match (shared part number, not a government interchangeability claim): 6160-01-508-3798. Verify interchangeability with system specifications before substitution.
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.