PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

290200Cap

Lockheed Martin Corporation Div Rms - Mitchel Field · NSN 1210-00-381-5891 · FSC 1210 · No Item Name Available
Verified by PartsTable
NSN 1210-00-381-5891 — this item is cataloged by the U.S. Government under National Stock Number 1210-00-381-5891. Primary manufacturer part number: 290200.
Features
  • Cap — FSC 1210
  • 2 verified cross-references
  • Primary manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cap, cataloged under National Stock Number 1210-00-381-5891, is classified within Federal Supply Class 1210 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCap
FSC / FSG1210 — No Item Name Available (FSG 12)
ManufacturersLockheed Martin Corporation Div Rms - Mitchel Field (CAGE 56232); Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (CAGE 10001)
Technical Specifications
ParameterValue
NSN1210-00-381-5891
Primary Part Number290200
Item NameCap
FSC / FSG1210 / 12 — No Item Name Available
ManufacturerLockheed Martin Corporation Div Rms - Mitchel Field
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4730-00-287-0271 INTERCHANGEABLE
Nut,tube Coupling
9340-01-378-0734 INTERCHANGEABLE
Window,observation
Cross-Reference Index
Part NumberManufacturer
290200 PRIMARY Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
684417 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
4730-00-287-0271INTERCHANGEABLE
NUT,TUBE COUPLING
9340-01-378-0734INTERCHANGEABLE
WINDOW,OBSERVATION

Frequently Asked Questions

What is NSN 1210-00-381-5891?

NSN 1210-00-381-5891 is a Cap, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 1210 (No Item Name Available). Status: active.

What are the part numbers for NSN 1210-00-381-5891?

NSN 1210-00-381-5891 has 2 cross-referenced part numbers: 290200 (Lockheed Martin Corporation Div Rms - Mitchel Field), 684417 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 1210-00-381-5891?

There are 2 known substitutes for 1210-00-381-5891: 4730-00-287-0271, 9340-01-378-0734. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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