NSN 1240-01-321-0251 · NIIN 013210251 · Part number 799204832-001
Lockheed Martin Corporation · FSC 1240 — Optical Sighting and Ranging Equipment · FSG 12 — Fire Control Equipment · CAGE 04939
Government record, cited
NSN 1240-01-321-0251 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-321-0251. Manufacturer of record part number: 799204832-001.
Also searched as1240-01-321-0251 ·
1240013210251 ·
NIIN 013210251 ·
01-321-0251 ·
FSC 1240 Optical Sighting and Ranging Equipment · CAGE 04939 · 799204832-001
Nearby stock numbers← 1240-01-320-5430 Range Finder-Target Designator, L
·
1240-01-321-2734 Cover, Fire Control Instrument →
Features
Retainer,optical Element — FSC 1240
Drive Type: KNURL
Material: PLASTIC
Hole Diameter: 0.750 INCHES NOMINAL IN
1 manufacturer part number on file
Manufacturer of record: Lockheed Martin Corporation
Identification
NSN: 1240-01-321-0251
NIIN: 013210251
FSC: 1240 — Optical Sighting and Ranging Equipment
FSG: 12 — Fire Control Equipment
Primary part number: 799204832-001
Manufacturer: Lockheed Martin Corporation
General Description
The Retainer,optical Element, cataloged under National Stock Number 1240-01-321-0251, is classified within Federal Supply Class 1240 (Optical Sighting and Ranging Equipment) of the Fire Control Equipment group. The manufacturer of record is Lockheed Martin Corporation. Government technical data includes 3 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1240-01-321-0251
Primary Part Number
799204832-001
Item Name
Retainer,optical Element
FSC / FSG
1240 / 12 — Optical Sighting and Ranging Equipment
Other items in FSC 1240 — Optical Sighting and Ranging Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1240-00-764-4734
SUNSHADE
1240-00-987-5071
1240-00-987-5071 · Item name not on file
1240-01-068-6676
HOLDER,OPTICAL ELEMENT
1240-01-082-8849
SIGHT,INFINITY
1240-01-090-0609
1240-01-090-0609 · Item name not on file
1240-01-102-4266
1240-01-102-4266 · Item name not on file
1240-01-110-9897
1240-01-110-9897 · Item name not on file
1240-01-361-6090
COLLIMATOR,INFINITY AIMING REFER
Frequently Asked Questions
What is NSN 1240-01-321-0251?
NSN 1240-01-321-0251 is a Retainer,optical Element, manufactured by Lockheed Martin Corporation, classified under FSC 1240, Optical Sighting and Ranging Equipment. Status: active.
What part numbers are listed for NSN 1240-01-321-0251?
NSN 1240-01-321-0251 has 1 manufacturer part number on file: 799204832-001 (Lockheed Martin Corporation).
What are the specifications of 799204832-001?
Key specifications for 799204832-001: Drive Type: KNURL; Overall Length: 0.400 INCHES NOMINAL IN; Material: PLASTIC; Hole Diameter: 0.750 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.
Is NSN 1240-01-321-0251 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.
What is the DEMIL code for NSN 1240-01-321-0251?
NSN 1240-01-321-0251 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.