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AS1229-S-4179 — WASHER,LOCK

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

AS1229-S-4179: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include hole_diameter: 3.29 INCHES NOMINAL IN, major_thickness: 0.23 INCHES NOMINAL IN, outside_diameter: 4.750 INCHES NOMINAL IN, special_features: ITEM WEIGHT: 0.51LBS PER PACK LBS, special_test_features: INCLUDES 26-X-1002 SETSCREW, part_name_assigned_by_controlling_agency: LOCK WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-494-0149, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
AS1229-S-4179
NSN: 5310-01-494-0149
FSC: 5310 — Nuts and Washers
CAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
hole_diameter3.29 INCHES NOMINAL IN
major_thickness0.23 INCHES NOMINAL IN
outside_diameter4.750 INCHES NOMINAL IN
special_featuresITEM WEIGHT: 0.51LBS PER PACK LBS
special_test_featuresINCLUDES 26-X-1002 SETSCREW
part_name_assigned_by_controlling_agencyLOCK WASHER
NSN5310-01-494-0149
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: AS1229-S-4179 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SPECIAL TEST FEATURES: INCLUDES 26-X-1002 SETSCREW
•
OUTSIDE DIAMETER: 4.750 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.23 INCHES NOMINAL IN
•
HOLE DIAMETER: 3.29 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPECIAL TEST FEATURESINCLUDES 26-X-1002 SETSCREW
OUTSIDE DIAMETER4.750 INCHES NOMINAL IN
MAJOR THICKNESS0.23 INCHES NOMINAL IN
SPECIAL FEATURESITEM WEIGHT: 0.51LBS PER PACK LBS
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCK WASHER
HOLE DIAMETER3.29 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 2
1229-S-4179Reference document
Same NSN cross-reference
Reference document — Secondary reference
A1229-S-4179Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AS1229-S-4179?
AS1229-S-4179 is a WASHER,LOCK.
What parts can replace AS1229-S-4179?
There are 2 known substitutes for AS1229-S-4179: 1229-S-4179, A1229-S-4179. Substitute compatibility should be verified for your specific system.
What is the NSN for AS1229-S-4179?
AS1229-S-4179 is cataloged in the U.S. Government catalog under NSN 5310-01-494-0149. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.