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553-9608-002 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

553-9608-002: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, hole_diameter: 0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN, outside_diameter: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.039 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-048-6108, 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
553-9608-002
NSN: 5310-01-048-6108
FSC: 5310 — Nuts and Washers
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
hole_diameter0.248 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
outside_diameter0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentPASSIVATE OVERALL
material_thickness0.039 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
external_prebent_key_width0.085 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
external_prebent_key_length0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
overall_distance_including_keys0.407 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-766,COND A,TEMPER 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
distance_from_centerline_to_inside_of_prebent_key0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
NSN5310-01-048-6108
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 553-9608-002 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
•
EXTERNAL PREBENT KEY LENGTH: 0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.407 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766,COND A,TEMPER 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.039 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
EXTERNAL PREBENT KEY LENGTH0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.407 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766,COND A,TEMPER 1/4 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
MATERIAL THICKNESS0.039 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
EXTERNAL PREBENT KEY WIDTH0.085 INCHES MINIMUM AND 0.090 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

No substitute or cross-reference records for this part.

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 553-9608-002?
553-9608-002 is a WASHER,KEY.
What is the NSN for 553-9608-002?
553-9608-002 is cataloged in the U.S. Government catalog under NSN 5310-01-048-6108. 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.