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5184129 PIECE 27 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5184129 PIECE 27: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, head_style: FLAT CHAMFER, head_height: 0.177 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_length: 0.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-381-9872, 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
5184129 PIECE 27
NSN: 5305-01-381-9872
FSC: 5305 — Screws
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
head_styleFLAT CHAMFER
head_height0.177 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.357 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_length0.375 INCHES NOMINAL IN
shoulder_shapeROUND ALL SHOULDERS
fastener_length0.500 INCHES NOMINAL IN
thread_directionRIGHT-HAND
shoulder_diameter0.273 INCHES MINIMUM AND 0.275 INCHES MAXIMUM ALL SHOULDERS IN
surface_treatmentZINC OVERALL
width_across_flats0.125 INCHES NOMINAL IN
NSN5305-01-381-9872
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5184129 PIECE 27 · 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
•
WIDTH ACROSS FLATS: 0.125 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.177 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.500 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 0.273 INCHES MINIMUM AND 0.275 INCHES MAXIMUM ALL SHOULDERS IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND ALL SHOULDERS
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.125 INCHES NOMINAL IN
HEAD HEIGHT0.177 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
FASTENER LENGTH0.500 INCHES NOMINAL IN
SHOULDER DIAMETER0.273 INCHES MINIMUM AND 0.275 INCHES MAXIMUM ALL SHOULDERS IN
THREAD LENGTH0.375 INCHES NOMINAL IN
SHOULDER SHAPEROUND ALL SHOULDERS
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
SURFACE TREATMENTZINC OVERALL
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
5305PL1283685Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 5184129 PIECE 27?
5184129 PIECE 27 is a SCREW,SHOULDER.
What parts can replace 5184129 PIECE 27?
There is 1 known substitute for 5184129 PIECE 27: 5305PL1283685. Substitute compatibility should be verified for your specific system.
What is the NSN for 5184129 PIECE 27?
5184129 PIECE 27 is cataloged in the U.S. Government catalog under NSN 5305-01-381-9872. 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.