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938.56.13.108 — NUT,SHEET SPRING

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

938.56.13.108: NUT,SHEET SPRING.

The NUT,SHEET SPRING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, nut_style: SHEET SPRING, nut_width: 0.280 INCHES NOMINAL IN, nut_height: 0.330 INCHES NOMINAL IN, nut_length: 6.700 INCHES NOMINAL IN, panel_thickness: 0.375 INCHES MINIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-613-5676, 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
938.56.13.108
NSN: 5310-00-613-5676
FSC: 5310 — Nuts and Washers
CAGE: S4080 — PILATUS AIRCRAFT LTD (CHE)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleSHEET SPRING
nut_width0.280 INCHES NOMINAL IN
nut_height0.330 INCHES NOMINAL IN
nut_length6.700 INCHES NOMINAL IN
panel_thickness0.375 INCHES MINIMUM IN
surface_treatmentCADMIUM OVERALL
material_thickness0.040 INCHES NOMINAL IN
gripping_prong_length0.375 INCHES MINIMUM IN
nut_mounting_provisionGRIPPING PRONGS
gripping_prong_quantity2
mating_member_diameter_accommodated0.138 INCHES NOMINAL IN
NSN5310-00-613-5676
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 938.56.13.108 · 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
•
NUT WIDTH: 0.280 INCHES NOMINAL IN
•
NUT LENGTH: 6.700 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
GRIPPING PRONG LENGTH: 0.375 INCHES MINIMUM IN
•
MATERIAL THICKNESS: 0.040 INCHES NOMINAL IN
•
GRIPPING PRONG QUANTITY: 2
•
PANEL THICKNESS: 0.375 INCHES MINIMUM IN
•
MATING MEMBER DIAMETER ACCOMMODATED: 0.138 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
NUT WIDTH0.280 INCHES NOMINAL IN
NUT LENGTH6.700 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
GRIPPING PRONG LENGTH0.375 INCHES MINIMUM IN
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
GRIPPING PRONG QUANTITY2
PANEL THICKNESS0.375 INCHES MINIMUM IN
MATING MEMBER DIAMETER ACCOMMODATED0.138 INCHES NOMINAL IN
NUT HEIGHT0.330 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM 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 3
MS33737-16CReference document
Same NSN cross-reference
Reference document — Secondary reference
A8944-632-493Reference document
Same NSN cross-reference
Reference document — Secondary reference
A8944-632Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 938.56.13.108?
938.56.13.108 is a NUT,SHEET SPRING.
What parts can replace 938.56.13.108?
There are 3 known substitutes for 938.56.13.108: MS33737-16C, A8944-632-493, A8944-632. Substitute compatibility should be verified for your specific system.
What is the NSN for 938.56.13.108?
938.56.13.108 is cataloged in the U.S. Government catalog under NSN 5310-00-613-5676. 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.