PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21633Washer,lock

Dresser, Llc · NSN 5310-00-011-4618 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-011-4618 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-011-4618. Primary manufacturer part number: 21633.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.383 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
  • Material Document and Classification: -QQ-S-633 CANC FED SPEC 1ST MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 2ND MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 3RD MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 4TH MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 5TH MATERIAL RESPONSE OVERALL
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
  • Nondefinitive Spec/std Data: C TYPE
  • Outside Diameter: 0.765 INCHES NOMINAL IN
  • Material: STEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
  • Style Designator: COUNTERSINK EXTERNAL TEETH
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1065 or Steel Comp 1070 or Steel Comp 1075 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-011-4618, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Dresser, Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-011-4618
Primary Part Number21633
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerDresser, Llc
StatusCANCELLED
Hole Diameter0.383 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN
Material Document and Classification-QQ-S-633 CANC FED SPEC 1ST MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 2ND MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 3RD MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 4TH MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 5TH MATERIAL RESPONSE OVERALL
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Nondefinitive Spec/std DataC TYPE
Outside Diameter0.765 INCHES NOMINAL IN
MaterialSTEEL COMP 1060 OR STEEL COMP 1065 OR STEEL COMP 1070 OR STEEL COMP 1075 OR STEEL COMP 1080 OVERALL
Style DesignatorCOUNTERSINK EXTERNAL TEETH
Material Thickness0.028 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-011-4614114614 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-011-4617114617 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-013-4512134512 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-013-8589 INTERCHANGEABLE
Washer,lock
5310-00-013-8593 INTERCHANGEABLE
Washer,lock
5310-00-013-8595138595 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-013-8604138604 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-058-3135 INTERCHANGEABLE
Washer,lock
3110-00-101-10045EX13 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Oshkosh Defense Llc
4820-00-135-54702680210 INTERCHANGEABLE
Valve,check
Parker Hannifin Corporation Div Aerospace Group Headquarters
Cross-Reference Index
Part NumberManufacturer
21633 Dresser, Llc (USA)
114618 General Motors Llc Dba General Motors Llc (USA)
BEAX4G CAGE 00000
114618 General Motors Corp (USA)
910979 Allis-Chalmers Corp (USA)
MILW6986TYPEC Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0910979 Allis-Chalmers Corp (USA)
0910979-4 Allis-Chalmers Corp (USA)
Related Parts
5310-00-011-4614INTERCHANGEABLE
WASHER,LOCK
114614
5310-00-011-4617INTERCHANGEABLE
WASHER,LOCK
114617
5310-00-013-4512INTERCHANGEABLE
WASHER,LOCK
134512
5310-00-013-8589INTERCHANGEABLE
WASHER,LOCK
5310-00-013-8593INTERCHANGEABLE
WASHER,LOCK
5310-00-013-8595INTERCHANGEABLE
WASHER,LOCK
138595
5310-00-013-8604INTERCHANGEABLE
WASHER,LOCK
138604
5310-00-058-3135INTERCHANGEABLE
WASHER,LOCK
3110-00-101-1004INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
5EX13
4820-00-135-5470INTERCHANGEABLE
VALVE,CHECK
2680210
5310-00-194-9211INTERCHANGEABLE
WASHER,LOCK
5330-00-285-1332INTERCHANGEABLE
SEAL,PLAIN ENCASED

Frequently Asked Questions

What is NSN 5310-00-011-4618?

NSN 5310-00-011-4618 is a Washer,lock, manufactured by Dresser, Llc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-011-4618?

NSN 5310-00-011-4618 has 8 cross-referenced part numbers: 21633 (Dresser, Llc), 114618 (General Motors Llc Dba General Motors Llc), BEAX4G, 114618 (General Motors Corp), 910979 (Allis-Chalmers Corp) and 3 more.

What NSN replaces 5310-00-011-4618?

There are 12 known substitutes for 5310-00-011-4618: 5310-00-011-4614, 5310-00-011-4617, 5310-00-013-4512 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21633?

Key specifications for 21633: Hole Diameter: 0.383 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN; Material Document and Classification: -QQ-S-633 CANC FED SPEC 1ST MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 2ND MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 3RD MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 4TH MATERIAL RESPONSE OR -QQ-S-633 CANC FED SPEC 5TH MATERIAL RESPONSE OVERALL; Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM; Nondefinitive Spec/std Data: C TYPE. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-011-4618 still in active supply?

NSN 5310-00-011-4618 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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