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03A279-6-124 — WASHER,PRELOAD INDICATING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

03A279-6-124: WASHER,PRELOAD INDICATING.

The WASHER,PRELOAD INDICATING is a the manufacturer industrial component. Key specifications include recess_angle: 120.0 DEGREES NOMINAL, unloaded_length: 0.296 INCHES MAXIMUM IN, outside_diameter: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN, bolt_minimum_tensil_strength: 11160 POUNDS PER SQUARE INCH LBS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-330-8518, 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
03A279-6-124
NSN: 5310-01-330-8518
FSC: 5310 — Nuts and Washers
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
recess_angle120.0 DEGREES NOMINAL
unloaded_length0.296 INCHES MAXIMUM IN
outside_diameter0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
bolt_minimum_tensil_strength11160 POUNDS PER SQUARE INCH LBS
NSN5310-01-330-8518
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 03A279-6-124 · 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
•
OUTSIDE DIAMETER: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
•
BOLT MINIMUM TENSIL STRENGTH: 11160 POUNDS PER SQUARE INCH LBS
•
UNLOADED LENGTH: 0.296 INCHES MAXIMUM IN
•
RECESS ANGLE: 120.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
BOLT MINIMUM TENSIL STRENGTH11160 POUNDS PER SQUARE INCH LBS
UNLOADED LENGTH0.296 INCHES MAXIMUM IN
RECESS ANGLE120.0 DEGREES NOMINAL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 03A279-6-124?
03A279-6-124 is a WASHER,PRELOAD INDICATING.
What is the NSN for 03A279-6-124?
03A279-6-124 is cataloged in the U.S. Government catalog under NSN 5310-01-330-8518. 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.