PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123-127Spacer,ring

Avionics Specialties, Inc. · NSN 5365-00-071-3121 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-00-071-3121 — this item is cataloged by the U.S. Government under National Stock Number 5365-00-071-3121. Primary manufacturer part number: 123-127.
Features
  • Spacer,ring — FSC 5365
  • Material: STEEL
  • Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
  • Surface Treatment: PASSIVATE
  • Inside Diameter: 0.708 INCHES NOMINAL IN
  • Outside Diameter: 1.250 INCHES NOMINAL IN
  • Overall Thickness: 0.063 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
  • Material Document and Classification: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Steel construction
General Description

The Spacer,ring, cataloged under National Stock Number 5365-00-071-3121, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Avionics Specialties, Inc.. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5365-00-071-3121
Primary Part Number123-127
Item NameSpacer,ring
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerAvionics Specialties, Inc.
StatusACTIVE
MaterialSTEEL
Surface Treatment Document and ClassificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
Surface TreatmentPASSIVATE
Inside Diameter0.708 INCHES NOMINAL IN
Outside Diameter1.250 INCHES NOMINAL IN
Overall Thickness0.063 INCHES MINIMUM AND 0.067 INCHES MAXIMUM IN
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5998-00-762-9038123127 INTERCHANGEABLE
Circuit Card Assembly
Bae Systems Information and Electronic Systems Integration Inc.
2530-01-330-00325441-1 INTERCHANGEABLE
Kingpin,wheel Spindle
Pdi Ground Support Systems, Inc.
5930-01-360-46141231/27 INTERCHANGEABLE
Boot,dust and Moisture Seal
Apm Hexseal Corp
Cross-Reference Index
Part NumberManufacturer
10118417 Nimikkeistokeskus Ncb Finland (FIN)
123-127 Kampi Components Co Inc (USA)
123-127 PRIMARY Avionics Specialties, Inc. (USA)
123/127 Aerosonic Llc (USA)
Related Parts
5998-00-762-9038INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
123127
2530-01-330-0032INTERCHANGEABLE
KINGPIN,WHEEL SPINDLE
5441-1
5930-01-360-4614INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
1231/27

Frequently Asked Questions

What is NSN 5365-00-071-3121?

NSN 5365-00-071-3121 is a Spacer,ring, manufactured by Avionics Specialties, Inc., classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-00-071-3121?

NSN 5365-00-071-3121 has 4 cross-referenced part numbers: 10118417 (Nimikkeistokeskus Ncb Finland), 123-127 (Kampi Components Co Inc), 123-127 (Avionics Specialties, Inc.), 123/127 (Aerosonic Llc).

What NSN replaces 5365-00-071-3121?

There are 3 known substitutes for 5365-00-071-3121: 5998-00-762-9038, 2530-01-330-0032, 5930-01-360-4614. Verify interchangeability with system specifications before substitution.

What are the specifications of 123-127?

Key specifications for 123-127: Material: STEEL; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE; Surface Treatment: PASSIVATE; Inside Diameter: 0.708 INCHES NOMINAL IN. 7 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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