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MS9276-13 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

MS9276-13: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, hole_diameter: 0.450 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN, outside_diameter: 0.685 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN, special_features: BOTH ANGULAR KEYS BENT 15 DEG IN OPPOSITE DIRECTION OF PREBENT KEY, split_key_length: 0.180 INCHES NOMINAL IN, style_designator: KEY. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-899-2181, 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
MS9276-13
NSN: 5310-00-899-2181
FSC: 5310 — Nuts and Washers
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
hole_diameter0.450 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
outside_diameter0.685 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN
special_featuresBOTH ANGULAR KEYS BENT 15 DEG IN OPPOSITE DIRECTION OF PREBENT KEY
split_key_length0.180 INCHES NOMINAL IN
style_designatorKEY
material_thickness0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
external_key_quantity3
external_prebent_key_width0.170 INCHES MINIMUM AND 0.175 INCHES MAXIMUM IN
external_tapered_key_width0.390 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
angle_between_external_keys58.0 DEGREES MINIMUM AND 62.0 DEGREES MAXIMUM
external_prebent_key_length0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
NSN5310-00-899-2181
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS9276-13 · 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: 0.415 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN
•
SPLIT KEY LENGTH: 0.180 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY LENGTH: 0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.977 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.685 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN
•
EXTERNAL TAPERED KEY WIDTH: 0.390 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.415 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN
SPLIT KEY LENGTH0.180 INCHES NOMINAL IN
EXTERNAL PREBENT KEY LENGTH0.150 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.977 INCHES MINIMUM AND 1.000 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5510 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.685 INCHES MINIMUM AND 0.695 INCHES MAXIMUM IN
EXTERNAL TAPERED KEY WIDTH0.390 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
MATERIAL THICKNESS0.032 INCHES MINIMUM AND 0.040 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY3
SUBSTITUTES & CROSS-REFERENCES 1
317746Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MS9276-13?
MS9276-13 is a WASHER,KEY.
What parts can replace MS9276-13?
There is 1 known substitute for MS9276-13: 317746. Substitute compatibility should be verified for your specific system.
What is the NSN for MS9276-13?
MS9276-13 is cataloged in the U.S. Government catalog under NSN 5310-00-899-2181. This indicates validated use in U.S. government and defense supply chains.
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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.