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5343973 PIECE 16 — SCREW,CAP,HEXAGON HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5343973 PIECE 16: SCREW,CAP,HEXAGON HEAD.

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 0.619 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN, fastener_length: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-293-0981, 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 16
NSN: 5305-01-293-0981
FSC: 5305 — Screws
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
thread_class2A A
thread_length0.619 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
fastener_length0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
width_between_flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
nominal_thread_diameter0.250 INCHES IN
thread_quantity_per_inch20
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
nondefinitive_spec/std_data1 TYPE
NSN5305-01-293-0981
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5343973 PIECE 16 · 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: 0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.619 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
FASTENER LENGTH0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
THREAD LENGTH0.619 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA1 TYPE
THREAD CLASS2A A
THREAD QUANTITY PER INCH20
SUBSTITUTES & CROSS-REFERENCES 2
MIL-B-857TY3 0. 25-20UNC2AX0.75Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
MIL-S-1222 TY1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 16?
5343973 PIECE 16 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 5343973 PIECE 16?
There are 2 known substitutes for 5343973 PIECE 16: MIL-B-857TY3 0. 25-20UNC2AX0.75, MIL-S-1222 TY1. Substitute compatibility should be verified for your specific system.
What is the NSN for 5343973 PIECE 16?
5343973 PIECE 16 is cataloged in the U.S. Government catalog under NSN 5305-01-293-0981. 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.