PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

900821Panel,bulkhead

Mission Systems Orchard Park Inc · NSN 1660-00-770-4250 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-770-4250 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-770-4250. Primary manufacturer part number: 900821.
Features
  • Panel,bulkhead — FSC 1660
  • 3 verified cross-references
  • Primary manufacturer: Mission Systems Orchard Park Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Panel,bulkhead, cataloged under National Stock Number 1660-00-770-4250, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Mission Systems Orchard Park Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NamePanel,bulkhead
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersMission Systems Orchard Park Inc (CAGE 04577); Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (CAGE 98748); Ingersoll-Rand Company Dba Ingersoll-Rand (CAGE 03990)
Technical Specifications
ParameterValue
NSN1660-00-770-4250
Primary Part Number900821
Item NamePanel,bulkhead
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerMission Systems Orchard Park Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5955-01-110-7268 INTERCHANGEABLE
Oscillator,noncrystal Controlled
4820-01-498-5765 INTERCHANGEABLE
Valve,ball
3830-01-618-9603900821 INTERCHANGEABLE
Backhoe,tractor Mounting
Erskine Attachments, Inc.
Cross-Reference Index
Part NumberManufacturer
900821 PRIMARY Mission Systems Orchard Park Inc (USA)
8148650 Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force (USA)
900821 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
Related Parts
5955-01-110-7268INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
4820-01-498-5765INTERCHANGEABLE
VALVE,BALL
3830-01-618-9603INTERCHANGEABLE
BACKHOE,TRACTOR MOUNTING
900821

Frequently Asked Questions

What is NSN 1660-00-770-4250?

NSN 1660-00-770-4250 is a Panel,bulkhead, manufactured by Mission Systems Orchard Park Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-770-4250?

NSN 1660-00-770-4250 has 3 cross-referenced part numbers: 900821 (Mission Systems Orchard Park Inc), 8148650 (Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force), 900821 (Ingersoll-Rand Company Dba Ingersoll-Rand).

What NSN replaces 1660-00-770-4250?

There are 3 known substitutes for 1660-00-770-4250: 5955-01-110-7268, 4820-01-498-5765, 3830-01-618-9603. Verify interchangeability with system specifications before substitution.

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