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H-302203 — WASHER,SHOULDERED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

H-302203: WASHER,SHOULDERED.

The WASHER,SHOULDERED is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, hole_diameter: 0.504 INCHES NOMINAL IN, overall_height: 0.066 INCHES NOMINAL IN, shoulder_height: 0.054 INCHES NOMINAL IN, outside_diameter: 0.717 INCHES NOMINAL IN, style_designator: SHOULDERED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-448-9480, 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
H-302203
NSN: 5310-01-448-9480
FSC: 5310 — Nuts and Washers
CAGE: 56257 — TECHNETICS GROUP LLC DBA TECHNETICS GROUP COLUMBIA DIV TECHNETICS GROUP COLUMBIA (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
hole_diameter0.504 INCHES NOMINAL IN
overall_height0.066 INCHES NOMINAL IN
shoulder_height0.054 INCHES NOMINAL IN
outside_diameter0.717 INCHES NOMINAL IN
special_featuresTHIS ITEM IS USED AS A SEAL BETWEEN THE COMPRESSOR AND CONNECTING HOSES ON THE HH65A HELICOPTER. IT HAS NO HEAT TREATMENT OR PLATING
style_designatorSHOULDERED
shoulder_diameter0.528 INCHES NOMINAL IN
end_item_identificationCOAST GUARD HH65A HELICOPTER
NSN5310-01-448-9480
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: H-302203 · 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
•
SHOULDER HEIGHT: 0.054 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED
•
OUTSIDE DIAMETER: 0.717 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.528 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.066 INCHES NOMINAL IN
SHOULDER HEIGHT0.054 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED
OUTSIDE DIAMETER0.717 INCHES NOMINAL IN
SHOULDER DIAMETER0.528 INCHES NOMINAL IN
SPECIAL FEATURESTHIS ITEM IS USED AS A SEAL BETWEEN THE COMPRESSOR AND CONNECTING HOSES ON THE HH65A HELICOPTER. IT HAS NO HEAT TREATMENT OR PLATING
END ITEM IDENTIFICATIONCOAST GUARD HH65A HELICOPTER
MATERIALALUMINUM OVERALL
HOLE DIAMETER0.504 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H-302203?
H-302203 is a WASHER,SHOULDERED.
What is the NSN for H-302203?
H-302203 is cataloged in the U.S. Government catalog under NSN 5310-01-448-9480. 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.