PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50489Washer,shouldered

L3 Technologies, Inc. Div L3 Keo · NSN 5310-01-451-0845 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-451-0845 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-451-0845. Primary manufacturer part number: 50489.
Features
  • Washer,shouldered — FSC 5310
  • Surface Treatment: OXIDE OVERALL
  • Surface Treatment Document and Classification: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Style Designator: SHOULDERED
  • Shoulder Height: 0.028 INCHES NOMINAL IN
  • Hole Diameter: 1.375 INCHES NOMINAL IN
  • Color: BLACK OVERALL
  • Outside Diameter: 2.000 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 Overall construction
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-01-451-0845, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Technologies, Inc. Div L3 Keo. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-451-0845
Primary Part Number50489
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div L3 Keo
StatusACTIVE
Surface TreatmentOXIDE OVERALL
Surface Treatment Document and ClassificationMIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Style DesignatorSHOULDERED
Shoulder Height0.028 INCHES NOMINAL IN
Hole Diameter1.375 INCHES NOMINAL IN
ColorBLACK OVERALL
Outside Diameter2.000 INCHES NOMINAL IN
Material Document and ClassificationASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 303 OVERALL
Shoulder Diameter1.499 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
3455-00-248-4934 INTERCHANGEABLE
File,rotary
5998-00-386-126850489 INTERCHANGEABLE
Circuit Card Assembly
Alliant Techsystems Operations Llc Div Defense Electronic Systems
4730-00-618-7038 INTERCHANGEABLE
Bushing,pipe
5330-00-641-315734531 INTERCHANGEABLE
Seal,plain Encased
Allianz Sweeper Company
3110-01-022-953051003 INTERCHANGEABLE
Retainer and Rollers,bearing
Paccar Winch Inc Dba Paccar Winch Division
5999-01-270-0025 INTERCHANGEABLE
Contact Kit,electrical
6240-01-344-955350489 INTERCHANGEABLE
Lamp,metal Halide
Venture Lighting International, Inc. Dba Venture Lighting Intl
5365-01-381-1186 INTERCHANGEABLE
Port Retainer Set
6505-01-529-5618NDC00009-7376-11 INTERCHANGEABLE
Medroxyprogesterone Acetate Inje
Pfizer Inc
5365-01-589-6607 INTERCHANGEABLE
Plug,machine Thread
Cross-Reference Index
Part NumberManufacturer
50489 PRIMARY L3 Technologies, Inc. Div L3 Keo (USA)
887C050489 L3 Technologies, Inc. Div L3 Keo (USA)
050489 L3 Technologies, Inc. Div L3 Keo (USA)
Related Parts
3455-00-248-4934INTERCHANGEABLE
FILE,ROTARY
5998-00-386-1268INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
50489
4730-00-618-7038INTERCHANGEABLE
BUSHING,PIPE
5330-00-641-3157INTERCHANGEABLE
SEAL,PLAIN ENCASED
34531
3110-01-022-9530INTERCHANGEABLE
RETAINER AND ROLLERS,BEARING
51003
5999-01-270-0025INTERCHANGEABLE
CONTACT KIT,ELECTRICAL
6240-01-344-9553INTERCHANGEABLE
LAMP,METAL HALIDE
50489
5365-01-381-1186INTERCHANGEABLE
PORT RETAINER SET
6505-01-529-5618INTERCHANGEABLE
MEDROXYPROGESTERONE ACETATE INJE
NDC00009-7376-11
5365-01-589-6607INTERCHANGEABLE
PLUG,MACHINE THREAD

Frequently Asked Questions

What is NSN 5310-01-451-0845?

NSN 5310-01-451-0845 is a Washer,shouldered, manufactured by L3 Technologies, Inc. Div L3 Keo, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-451-0845?

NSN 5310-01-451-0845 has 3 cross-referenced part numbers: 50489 (L3 Technologies, Inc. Div L3 Keo), 887C050489 (L3 Technologies, Inc. Div L3 Keo), 050489 (L3 Technologies, Inc. Div L3 Keo).

What NSN replaces 5310-01-451-0845?

There are 10 known substitutes for 5310-01-451-0845: 3455-00-248-4934, 5998-00-386-1268, 4730-00-618-7038 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50489?

Key specifications for 50489: Special Features: (.152) DRIVE THRU AND 82.0 DG CSK TO .266 DIA 4 HOLES.FEATGNO. 24 DRIVE THRU AND 82.0 DEG CSK TO.266 IN.DIA 4 HOLES. IN; Surface Treatment: OXIDE OVERALL; Surface Treatment Document and Classification: MIL-C-13924 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Style Designator: SHOULDERED. 12 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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