PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3491071Retainer,bearing

Raytheon Company Dba Raytheon · NSN 1280-01-145-2597 · FSC 1280 · No Item Name Available
Verified by PartsTable
NSN 1280-01-145-2597 — this item is cataloged by the U.S. Government under National Stock Number 1280-01-145-2597. Primary manufacturer part number: 3491071.
Features
  • Retainer,bearing — FSC 1280
  • General Characteristics Item Description: CRES 321,QQ-S-766,CLASS 321 COND A; 1.410 IN. ID,1.875 IN. OD,0.050 IN. THK; WITH FOUR HOLES 0.096 IN. NOM DIA OF EACH,EQUALLY SPACED,100 DEG COUNTERSUNK IN
  • 1 verified cross-reference
  • Primary manufacturer: Raytheon Company Dba Raytheon
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Retainer,bearing, cataloged under National Stock Number 1280-01-145-2597, is classified within Federal Supply Class 1280 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Raytheon Company Dba Raytheon. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1280-01-145-2597
Primary Part Number3491071
Item NameRetainer,bearing
FSC / FSG1280 / 12 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
General Characteristics Item DescriptionCRES 321,QQ-S-766,CLASS 321 COND A; 1.410 IN. ID,1.875 IN. OD,0.050 IN. THK; WITH FOUR HOLES 0.096 IN. NOM DIA OF EACH,EQUALLY SPACED,100 DEG COUNTERSUNK IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-00-543-2785 INTERCHANGEABLE
Screw,machine
Cross-Reference Index
Part NumberManufacturer
3491071 PRIMARY Raytheon Company Dba Raytheon (USA)
Related Parts
5305-00-543-2785INTERCHANGEABLE
SCREW,MACHINE

Frequently Asked Questions

What is NSN 1280-01-145-2597?

NSN 1280-01-145-2597 is a Retainer,bearing, manufactured by Raytheon Company Dba Raytheon, classified under FSC 1280 (No Item Name Available). Status: active.

What are the part numbers for NSN 1280-01-145-2597?

NSN 1280-01-145-2597 has 1 cross-referenced part number: 3491071 (Raytheon Company Dba Raytheon).

What NSN replaces 1280-01-145-2597?

There is 1 known substitute for 1280-01-145-2597: 5305-00-543-2785. Verify interchangeability with system specifications before substitution.

What are the specifications of 3491071?

Key specifications for 3491071: General Characteristics Item Description: CRES 321,QQ-S-766,CLASS 321 COND A; 1.410 IN. ID,1.875 IN. OD,0.050 IN. THK; WITH FOUR HOLES 0.096 IN. NOM DIA OF EACH,EQUALLY SPACED,100 DEG COUNTERSUNK IN; End Item Identification: AIRCRAFT MODEL A-4. 2 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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