PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

540-8636-002Retainer,crystal Holder

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5955-00-683-5819 · FSC 5955 · No Item Name Available
Verified by PartsTable
NSN 5955-00-683-5819 — this item is cataloged by the U.S. Government under National Stock Number 5955-00-683-5819. Primary manufacturer part number: 540-8636-002.
Features
  • Retainer,crystal Holder — FSC 5955
  • Unthreaded Mounting Hole Diameter: 0.098 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Material Document and Classification: QQ-C-533,ALLOY 170 FED SPEC SINGLE MATERIAL RESPONSE
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Accommodated Item Securing Device Type: SPRING CLIP
  • Style Designator: IRREGULAR
  • Material: COPPER ALLOY 170
  • Distance Between Mounting Facility Centers: 0.437 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Applications
  • Applications requiring Copper Alloy 170 construction
General Description

The Retainer,crystal Holder, cataloged under National Stock Number 5955-00-683-5819, is classified within Federal Supply Class 5955 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5955-00-683-5819
Primary Part Number540-8636-002
Item NameRetainer,crystal Holder
FSC / FSG5955 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Unthreaded Mounting Hole Diameter0.098 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Material Document and ClassificationQQ-C-533,ALLOY 170 FED SPEC SINGLE MATERIAL RESPONSE
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Accommodated Item Securing Device TypeSPRING CLIP
Style DesignatorIRREGULAR
MaterialCOPPER ALLOY 170
Distance Between Mounting Facility Centers0.437 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUP IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
6625-00-166-1005 INTERCHANGEABLE
Shunt,instrument
2920-00-454-8181118361 INTERCHANGEABLE
Oiler
Am General Llc
5985-01-295-973650 DV49(SMA) INTERCHANGEABLE
Attenuator,variable
Alan Industries Inc
Cross-Reference Index
Part NumberManufacturer
540-8636-002 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
118361 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Related Parts
6625-00-166-1005INTERCHANGEABLE
SHUNT,INSTRUMENT
2920-00-454-8181INTERCHANGEABLE
OILER
118361
5985-01-295-9736INTERCHANGEABLE
ATTENUATOR,VARIABLE
50 DV49(SMA)

Frequently Asked Questions

What is NSN 5955-00-683-5819?

NSN 5955-00-683-5819 is a Retainer,crystal Holder, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5955 (No Item Name Available). Status: active.

What are the part numbers for NSN 5955-00-683-5819?

NSN 5955-00-683-5819 has 2 cross-referenced part numbers: 540-8636-002 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 118361 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).

What NSN replaces 5955-00-683-5819?

There are 3 known substitutes for 5955-00-683-5819: 6625-00-166-1005, 2920-00-454-8181, 5985-01-295-9736. Verify interchangeability with system specifications before substitution.

What are the specifications of 540-8636-002?

Key specifications for 540-8636-002: Unthreaded Mounting Hole Diameter: 0.098 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Material Document and Classification: QQ-C-533,ALLOY 170 FED SPEC SINGLE MATERIAL RESPONSE; Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY; Overall Width: 0.688 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

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