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Technical Data Sheet
PartsTable / COMPONENT / DS-934257
DS-934257 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT COUNTERSUNK, thread_class: 3A A, head_diameter: 0.300 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN, thread_length: 0.375 INCHES MINIMUM IN, fastener_length: 0.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-780-9548, 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
DS-934257
NSN: 5305-00-780-9548
FSC: 5305
CAGE: 26233 — NYLOK LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT COUNTERSUNK
thread_class3A A
head_diameter0.300 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
thread_length0.375 INCHES MINIMUM IN
fastener_length0.375 INCHES NOMINAL IN
locking_featurePATCH OR STRIP THREADS
thread_directionRIGHT-HAND
countersink_angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
surface_treatmentCADMIUM AND CHROMATE OVERALL
internal_drive_styleSLOT
nominal_thread_diameter0.164 INCHES IN
NSN5305-00-780-9548
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: DS-934257 · 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 DIAMETER: 0.300 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
•
THREAD LENGTH: 0.375 INCHES MINIMUM IN
•
COUNTERSINK ANGLE: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
THREAD CLASS: 3A A
•
LOCKING FEATURE: PATCH OR STRIP THREADS
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.300 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD LENGTH0.375 INCHES MINIMUM IN
COUNTERSINK ANGLE80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD DIAMETER0.164 INCHES IN
THREAD CLASS3A A
LOCKING FEATUREPATCH OR STRIP THREADS
INTERNAL DRIVE STYLESLOT
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
A1654Interchangeable
interchangeable cross-reference
interchangeable
M86092-502Interchangeable
interchangeable cross-reference
interchangeable
5193Interchangeable
interchangeable cross-reference
interchangeable
5193-1Interchangeable
interchangeable cross-reference
interchangeable
SC-036.3Interchangeable
interchangeable cross-reference
interchangeable
SC-0363Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DS-934257?
DS-934257 is a SCREW,CAP,SOCKET HEAD.
What parts can replace DS-934257?
There are 11 known substitutes for DS-934257: A1654, M86092-502, 5193 and 8 more. Substitute compatibility should be verified for your specific system.
Is DS-934257 still available?
DS-934257 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026