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A-622-20001-6 — SCREW,ASSEMBLED WASHER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

A-622-20001-6: SCREW,ASSEMBLED WASHER.

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include thread_length: 0.375 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, nominal_thread_diameter: 0.250 INCHES IN, thread_quantity_per_inch: 20, part_name_assigned_by_controlling_agency: WASHER HEAD SCREW. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-648-1341, 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
A-622-20001-6
NSN: 5305-01-648-1341
FSC: 5305 — Screws
CAGE: 72166 — B.W. ELLIOTT MANUFACTURING CO., LLC (USA)
SPECIFICATIONS
thread_length0.375 INCHES NOMINAL IN
thread_directionRIGHT-HAND
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
part_name_assigned_by_controlling_agencyWASHER HEAD SCREW
NSN5305-01-648-1341
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A-622-20001-6 · 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
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 20
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.375 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER HEAD SCREW
THREAD QUANTITY PER INCH20
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
12153 ITEM 5Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 A-622-20001-6?
A-622-20001-6 is a SCREW,ASSEMBLED WASHER.
What parts can replace A-622-20001-6?
There is 1 known substitute for A-622-20001-6: 12153 ITEM 5. Substitute compatibility should be verified for your specific system.
What is the NSN for A-622-20001-6?
A-622-20001-6 is cataloged in the U.S. Government catalog under NSN 5305-01-648-1341. 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.