PartsTable
Technical Data Sheet
Download PDF

399636 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

399636: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, hole_diameter: 0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN, outside_diameter: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN, split_key_length: 0.110 INCHES NOMINAL IN, style_designator: KEY, material_thickness: 0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-941-3756, 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
399636
NSN: 5310-00-941-3756
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
hole_diameter0.200 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
outside_diameter0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
split_key_length0.110 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
external_key_quantity3
external_prebent_key_angle30.0 DEGREES NOMINAL
external_prebent_key_width0.210 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN
external_tapered_key_width0.187 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
angle_between_external_keys60.0 DEGREES NOMINAL
external_prebent_key_length0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
NSN5310-00-941-3756
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 399636 · 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
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
•
SPLIT KEY LENGTH: 0.110 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.565 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
•
EXTERNAL TAPERED KEY WIDTH: 0.187 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.190 INCHES MINIMUM AND 0.200 INCHES MAXIMUM IN
SPLIT KEY LENGTH0.110 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.565 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5515 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5516 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.335 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN
EXTERNAL TAPERED KEY WIDTH0.187 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
MATERIAL THICKNESS0.027 INCHES MINIMUM AND 0.035 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY3
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
Ready to buy 399636?
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 399636?
399636 is a WASHER,KEY.
What is the NSN for 399636?
399636 is cataloged in the U.S. Government catalog under NSN 5310-00-941-3756. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 399636

✓ 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.