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2-73428-1 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2-73428-1: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, recess_angle: 110.0 DEGREES NOMINAL, hole_diameter: 0.312 INCHES NOMINAL IN, recess_diameter: 0.460 INCHES NOMINAL IN, shoulder_height: 0.063 INCHES NOMINAL IN, outside_diameter: 0.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-046-9641, 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
2-73428-1
NSN: 5310-01-046-9641
FSC: 5310 — Nuts and Washers
CAGE: 76823 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN IS DIV NORTHROP GRUMMAN AERONAUTICS SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
recess_angle110.0 DEGREES NOMINAL
hole_diameter0.312 INCHES NOMINAL IN
recess_diameter0.460 INCHES NOMINAL IN
shoulder_height0.063 INCHES NOMINAL IN
outside_diameter0.750 INCHES NOMINAL IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter0.500 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
material_thickness0.062 INCHES NOMINAL IN
material_document_and_classificationQQ-A-200/3,TEMPER T42 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationFP-32,FSCM 06892 MFR REF SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-046-9641
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2-73428-1 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: FP-32,FSCM 06892 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
SHOULDER HEIGHT: 0.063 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/3,TEMPER T42 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.062 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.500 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.460 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONFP-32,FSCM 06892 MFR REF SINGLE TREATMENT RESPONSE OVERALL
SHOULDER HEIGHT0.063 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3,TEMPER T42 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
MATERIAL THICKNESS0.062 INCHES NOMINAL IN
SHOULDER DIAMETER0.500 INCHES NOMINAL IN
RECESS DIAMETER0.460 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
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 2-73428-1?
2-73428-1 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for 2-73428-1?
2-73428-1 is cataloged in the U.S. Government catalog under NSN 5310-01-046-9641. 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.