PartsTable TECHNICAL DATA SHEET
NSN 1270-00-491-2118Government record, cited

Retainer, Module, S1270-00-491-2118

NSN 1270-00-491-2118 · NIIN 004912118
FSC 1270 — Aircraft Gunnery Fire Control Components · FSG 12 — Fire Control Equipment
Government record, cited
Also searched as  1270-00-491-2118 · 1270004912118 · NIIN 004912118 · 00-491-2118 · FSC 1270 Aircraft Gunnery Fire Control Components
Nearby stock numbers  ·
Features
  • Retainer,module,s — FSC 1270
  • General Characteristics Item Description: ALUMINUM ALLOY,OXIDE FILM FINISH,0.810 IN. LG,0.420 IN. W,0.090 IN. H IN
Identification
  • NSN: 1270-00-491-2118
  • NIIN: 004912118
  • FSC: 1270 — Aircraft Gunnery Fire Control Components
  • FSG: 12 — Fire Control Equipment
General Description

The Retainer,module,s, cataloged under National Stock Number 1270-00-491-2118, is classified within Federal Supply Class 1270 (Aircraft Gunnery Fire Control Components) of the Fire Control Equipment group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1270-00-491-2118
Item NameRetainer,module,s
FSC / FSG1270 / 12 — Aircraft Gunnery Fire Control Components
StatusACTIVE
General Characteristics Item DescriptionALUMINUM ALLOY,OXIDE FILM FINISH,0.810 IN. LG,0.420 IN. W,0.090 IN. H IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4710-00-547-218291248-1 POSSIBLE MATCH
TUBE ASSEMBLY,METAL
Possible match (shared part number)Northrop Grumman Systems Corporation
3040-01-651-0467912481 POSSIBLE MATCH
COLLAR,SHAFT
Possible match (shared part number)The Will-Burt Company Div Assembly
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
91248-1 3/9 Design control — primary reference
Northrop Grumman Systems Corporation Div Es Defensive Systems Division
Related Parts
4710-00-547-2182POSSIBLE MATCH
TUBE ASSEMBLY,METAL
91248-1
3040-01-651-0467POSSIBLE MATCH
COLLAR,SHAFT
912481

Frequently Asked Questions

What is NSN 1270-00-491-2118?

NSN 1270-00-491-2118 is a Retainer,module,s, classified under FSC 1270, Aircraft Gunnery Fire Control Components. Status: active.

What NSN replaces 1270-00-491-2118?

2 possible matches (shared part number, not a government interchangeability claim): 4710-00-547-2182, 3040-01-651-0467. Verify interchangeability with system specifications before substitution.

What are the specifications of 1270-00-491-2118?

Key specifications for 1270-00-491-2118: General Characteristics Item Description: ALUMINUM ALLOY,OXIDE FILM FINISH,0.810 IN. LG,0.420 IN. W,0.090 IN. H IN. 1 specification is documented in the U.S. Government catalog.

Is NSN 1270-00-491-2118 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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