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563276-7 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

563276-7: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 4.120 INCHES MINIMUM AND 4.130 INCHES MAXIMUM IN, overall_height: 0.177 INCHES NOMINAL IN, outside_diameter: 4.345 INCHES MINIMUM AND 4.355 INCHES MAXIMUM IN, surface_treatment: OIL OVERALL, material_thickness: 0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-267-9920, 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
563276-7
NSN: 5310-01-267-9920
FSC: 5310 — Nuts and Washers
CAGE: 56232 — LOCKHEED MARTIN CORPORATION DIV RMS - MITCHEL FIELD (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter4.120 INCHES MINIMUM AND 4.130 INCHES MAXIMUM IN
overall_height0.177 INCHES NOMINAL IN
outside_diameter4.345 INCHES MINIMUM AND 4.355 INCHES MAXIMUM IN
surface_treatmentOIL OVERALL
material_thickness0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
NSN5310-01-267-9920
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 563276-7 · 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: 4.345 INCHES MINIMUM AND 4.355 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
•
SURFACE TREATMENT: OIL OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 4.120 INCHES MINIMUM AND 4.130 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.177 INCHES NOMINAL IN
OUTSIDE DIAMETER4.345 INCHES MINIMUM AND 4.355 INCHES MAXIMUM IN
MATERIAL THICKNESS0.022 INCHES MINIMUM AND 0.026 INCHES MAXIMUM IN
SURFACE TREATMENTOIL OVERALL
MATERIALSTEEL OVERALL
HOLE DIAMETER4.120 INCHES MINIMUM AND 4.130 INCHES MAXIMUM 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 1
W435-024Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 563276-7?
563276-7 is a WASHER,SPRING TENSION.
What parts can replace 563276-7?
There is 1 known substitute for 563276-7: W435-024. Substitute compatibility should be verified for your specific system.
What is the NSN for 563276-7?
563276-7 is cataloged in the U.S. Government catalog under NSN 5310-01-267-9920. 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.