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5343973 PIECE 22 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5343973 PIECE 22: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include thread_class: 3A A, thread_length: 1.000 INCHES NOMINAL IN, screw_material: STEEL, fastener_length: 1.000 INCHES NOMINAL IN, locking_feature: PATCH OR PELLET OR STRIP, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-438-9349, 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
5343973 PIECE 22
NSN: 5305-01-438-9349
FSC: 5305 — Screws
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
thread_class3A A
thread_length1.000 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length1.000 INCHES NOMINAL IN
locking_featurePATCH OR PELLET OR STRIP
thread_directionRIGHT-HAND
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-438-9349
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5343973 PIECE 22 · 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
•
FASTENER LENGTH: 1.000 INCHES NOMINAL IN
•
THREAD LENGTH: 1.000 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
LOCKING FEATURE: PATCH OR PELLET OR STRIP
•
SCREW MATERIAL: STEEL
•
THREAD CLASS: 3A A
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS
FASTENER LENGTH1.000 INCHES NOMINAL IN
THREAD LENGTH1.000 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPATCH OR PELLET OR STRIP
SCREW MATERIALSTEEL
THREAD CLASS3A A
THREAD QUANTITY PER INCH18
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 2
0.312-312-18UNC-3A X 1.000Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FFS86Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 5343973 PIECE 22?
5343973 PIECE 22 is a SCREW,MACHINE.
What parts can replace 5343973 PIECE 22?
There are 2 known substitutes for 5343973 PIECE 22: 0.312-312-18UNC-3A X 1.000, FFS86. Substitute compatibility should be verified for your specific system.
What is the NSN for 5343973 PIECE 22?
5343973 PIECE 22 is cataloged in the U.S. Government catalog under NSN 5305-01-438-9349. 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.