PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 7550478-26-29XX-XXXXA020-9
7550478-26-29XX-XXXXA020-9 ✓ 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,FLAT is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 400 OVERALL, thickness: 0.033 INCHES NOMINAL IN, overall_diameter: 0.607 INCHES NOMINAL IN, peripheral_shape_style: ROUND, criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-633-6960, 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
7550478-26-29XX-XXXXA020-9
NSN: 5310-01-633-6960
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL ALLOY 400 OVERALL
thickness0.033 INCHES NOMINAL IN
overall_diameter0.607 INCHES NOMINAL IN
peripheral_shape_styleROUND
criticality_code_justificationZZZY
NSN5310-01-633-6960
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7550478-26-29XX-XXXXA020-9 · 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: NICKEL ALLOY 400 OVERALL
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES
•
OVERALL DIAMETER: 0.607 INCHES NOMINAL IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.033 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY 400 OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES
OVERALL DIAMETER0.607 INCHES NOMINAL IN
CRITICALITY CODE JUSTIFICATIONZZZY
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.033 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
8088-9Interchangeable
interchangeable cross-reference
interchangeable
1-1/2INF212U6AInterchangeable
interchangeable cross-reference
interchangeable
MIL-V-17737Interchangeable
interchangeable cross-reference
interchangeable
10G8L-N05Interchangeable
interchangeable cross-reference
interchangeable
G547-0002-26-29XX-XXXXA020-9D0Interchangeable
Same NIIN cross-reference
interchangeable
G547-0002-26-29XX-XXXXA020-9Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 7550478-26-29XX-XXXXA020-9?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 7550478-26-29XX-XXXXA020-9?
7550478-26-29XX-XXXXA020-9 is a WASHER,FLAT.
What parts can replace 7550478-26-29XX-XXXXA020-9?
There are 10 known substitutes for 7550478-26-29XX-XXXXA020-9: 8088-9, 1-1/2INF212U6A, MIL-V-17737 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7550478-26-29XX-XXXXA020-9?
7550478-26-29XX-XXXXA020-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-633-6960. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 7550478-26-29XX-XXXXA020-9

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026