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PartsTable / COMPONENT / QAP00207
QAP00207 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: BERYLLIUM OVERALL, hole_diameter: 0.126 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN, overall_height: 0.025 INCHES NOMINAL IN, outside_diameter: 0.250 INCHES NOMINAL IN, material_thickness: 0.012 INCHES NOMINAL IN, material_document_and_classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-443-2978, 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
QAP00207
NSN: 5310-00-443-2978
FSC: 5310
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialBERYLLIUM OVERALL
hole_diameter0.126 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
overall_height0.025 INCHES NOMINAL IN
outside_diameter0.250 INCHES NOMINAL IN
material_thickness0.012 INCHES NOMINAL IN
material_document_and_classificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-443-2978
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: QAP00207 · 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
•
MATERIAL THICKNESS: 0.012 INCHES NOMINAL IN
•
MATERIAL: BERYLLIUM OVERALL
•
HOLE DIAMETER: 0.126 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.012 INCHES NOMINAL IN
OVERALL HEIGHT0.025 INCHES NOMINAL IN
MATERIALBERYLLIUM OVERALL
HOLE DIAMETER0.126 INCHES MINIMUM AND 0.131 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
G5440PC12-22-23Interchangeable
interchangeable cross-reference
interchangeable
M7410Interchangeable
interchangeable cross-reference
interchangeable
3459Interchangeable
interchangeable cross-reference
interchangeable
4S4D10-16Interchangeable
interchangeable cross-reference
interchangeable
12951330Interchangeable
interchangeable cross-reference
interchangeable
8483Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is QAP00207?
QAP00207 is a WASHER,SPRING TENSION.
What parts can replace QAP00207?
There are 10 known substitutes for QAP00207: G5440PC12-22-23, M7410, 3459 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for QAP00207?
QAP00207 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-443-2978. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026