PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12129Washer,shouldered

Curtiss-Wright Controls Integrated Sensing, Inc. · NSN 5310-00-808-2127 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-808-2127 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-808-2127. Primary manufacturer part number: 12129.
Features
  • Washer,shouldered — FSC 5310
  • Shoulder Height: 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
  • Material Document and Classification: AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6323 ASSN STD 2ND MATERIAL RESPONSE OVERALL
  • Surface Treatment: ANODIZE OVERALL
  • Style Designator: SHOULDERED
  • Surface Finish: 100.0 MICROINCHES ALL SURFACES
  • Material: STEEL OVERALL
  • Shoulder Diameter: 0.906 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,shouldered, cataloged under National Stock Number 5310-00-808-2127, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Controls Integrated Sensing, Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-808-2127
Primary Part Number12129
Item NameWasher,shouldered
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Controls Integrated Sensing, Inc.
StatusACTIVE
Shoulder Height0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
Material Document and ClassificationAMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6323 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Surface TreatmentANODIZE OVERALL
Style DesignatorSHOULDERED
Surface Finish100.0 MICROINCHES ALL SURFACES
MaterialSTEEL OVERALL
Shoulder Diameter0.906 INCHES MINIMUM AND 0.916 INCHES MAXIMUM IN
Hole Diameter0.212 INCHES MINIMUM AND 0.214 INCHES MAXIMUM IN
Outside Diameter1.184 INCHES MINIMUM AND 1.186 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-144-8498059-9 INTERCHANGEABLE
Bearing,ball,annular
Lockheed Martin Corporation Div Rms - Mitchel Field
5133-00-227-9671 INTERCHANGEABLE
Drill,twist
6730-00-356-5912 INTERCHANGEABLE
Plunger,reel Arm
3010-00-796-1863 INTERCHANGEABLE
Bellows,pressure
3010-00-899-096812129 INTERCHANGEABLE
Bellows,pressure
Senior Operations Llc Dba Metal Bellows Div Metal Bellows
2995-01-029-025012129 INTERCHANGEABLE
Ring Assy,matched
Pacific Piston Ring Co Inc
5920-01-053-0986 INTERCHANGEABLE
Fuse,cartridge
5935-01-062-3399121-29 INTERCHANGEABLE
Connector,receptacle,electrical
Tabet Manufacturing Company, Inc. Dba Tabet Manufacturing Co Inc
5970-01-103-6930 INTERCHANGEABLE
Insulator
2920-01-169-8706 INTERCHANGEABLE
Parts Kit,connector
Cross-Reference Index
Part NumberManufacturer
KW12129 Curtiss-Wright Controls Integrated Sensing, Inc. (USA)
12129 PRIMARY Curtiss-Wright Controls Integrated Sensing, Inc. (USA)
Related Parts
3110-00-144-8498INTERCHANGEABLE
BEARING,BALL,ANNULAR
059-9
5133-00-227-9671INTERCHANGEABLE
DRILL,TWIST
6730-00-356-5912INTERCHANGEABLE
PLUNGER,REEL ARM
3010-00-796-1863INTERCHANGEABLE
BELLOWS,PRESSURE
3010-00-899-0968INTERCHANGEABLE
BELLOWS,PRESSURE
12129
2995-01-029-0250INTERCHANGEABLE
RING ASSY,MATCHED
12129
5920-01-053-0986INTERCHANGEABLE
FUSE,CARTRIDGE
5935-01-062-3399INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
121-29
5970-01-103-6930INTERCHANGEABLE
INSULATOR
2920-01-169-8706INTERCHANGEABLE
PARTS KIT,CONNECTOR
5930-01-171-7414INTERCHANGEABLE
SWITCH,PUSH
4820-01-226-1700INTERCHANGEABLE
PARTS KIT,PRESSURE REGULATING VA
12129

Frequently Asked Questions

What is NSN 5310-00-808-2127?

NSN 5310-00-808-2127 is a Washer,shouldered, manufactured by Curtiss-Wright Controls Integrated Sensing, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-808-2127?

NSN 5310-00-808-2127 has 2 cross-referenced part numbers: KW12129 (Curtiss-Wright Controls Integrated Sensing, Inc.), 12129 (Curtiss-Wright Controls Integrated Sensing, Inc.).

What NSN replaces 5310-00-808-2127?

There are 12 known substitutes for 5310-00-808-2127: 3110-00-144-8498, 5133-00-227-9671, 6730-00-356-5912 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12129?

Key specifications for 12129: Shoulder Height: 0.055 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Material Document and Classification: AMS 6322 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6323 ASSN STD 2ND MATERIAL RESPONSE OVERALL; Surface Treatment: ANODIZE OVERALL; Style Designator: SHOULDERED. 9 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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