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91359 — WASHER,LOCK

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

91359: WASHER,LOCK.

The WASHER,LOCK is a the manufacturer industrial component. Key specifications include cup_diameter: 6.0 INCHES NOMINAL IN, special_features: 3/4" LONG 1/4-20 THREADED STUD; MINIMUM RADIUS FOR CURVED LOADS 305 MM. MM, nondefinitive_spec/std_data: HEIGHT PLATFORM 4.0 CM MOUNTING CM, part_name_assigned_by_controlling_agency: SIX INCH MOUNTING CUP WITH THREADED STUD.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-728-1403, 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
91359
NSN: 5305-00-728-1403
NIINs: 007281403, 010299650, 011117393, 016224564, 016852606
FSC: 5305 — Screws
CAGE: 58251 — FIRST AMERICAN SALES CO INC (USA)
SPECIFICATIONS
cup_diameter6.0 INCHES NOMINAL IN
special_features3/4" LONG 1/4-20 THREADED STUD; MINIMUM RADIUS FOR CURVED LOADS 305 MM. MM
nondefinitive_spec/std_dataHEIGHT PLATFORM 4.0 CM MOUNTING CM
part_name_assigned_by_controlling_agencySIX INCH MOUNTING CUP WITH THREADED STUD
NSN5305-00-728-1403
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 91359 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: PASSIVATE AND CHROMATE
•
FASTENER LENGTH: 0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.600 INCHES MINIMUM IN
•
NOMINAL THREAD DIAMETER: 0.060 INCHES IN
•
HEAD STYLE: PAN
•
THREAD DIRECTION: RIGHT-HAND
•
SPECIFICATION/STANDARD DATA: 80205-NAS1635 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.036 INCHES MINIMUM AND 0.044 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTPASSIVATE AND CHROMATE
FASTENER LENGTH0.595 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
THREAD LENGTH0.600 INCHES MINIMUM IN
NOMINAL THREAD DIAMETER0.060 INCHES IN
HEAD STYLEPAN
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA80205-NAS1635 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SCREW MATERIALSTEEL CORROSION RESISTING
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SUBSTITUTES & CROSS-REFERENCES 6
AN520C0-10Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
AIC812-00-10Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
106752-00-9CReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
E516-9Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
FS2002-00/009CReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
A0L4167-9Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91359?
91359 is a WASHER,LOCK.
What parts can replace 91359?
There are 6 known substitutes for 91359: AN520C0-10, AIC812-00-10, 106752-00-9C and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 91359?
91359 is cataloged in the U.S. Government catalog under NSN 5305-00-728-1403. 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.