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993R0049 PC 31 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

993R0049 PC 31: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, head_style: HEADLESS (SETSCREW), point_style: CUP, thread_length: 0.250 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, internal_drive_style: HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-475-4402, 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
993R0049 PC 31
NSN: 5305-01-475-4402
FSC: 5305 — Screws
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
head_styleHEADLESS (SETSCREW)
point_styleCUP
thread_length0.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleHEXAGON
end_item_identification3-2CVN-12 PUMP
nominal_thread_diameter0.312 INCHES IN
thread_quantity_per_inch18
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5305-01-475-4402
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 993R0049 PC 31 · 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: 0.250 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.312 INCHES IN
•
HEAD STYLE: HEADLESS (SETSCREW)
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: CUP
•
INTERNAL DRIVE STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 18
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.250 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.312 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
THREAD DIRECTIONRIGHT-HAND
POINT STYLECUP
INTERNAL DRIVE STYLEHEXAGON
END ITEM IDENTIFICATION3-2CVN-12 PUMP
THREAD QUANTITY PER INCH18
MATERIALSTEEL CORROSION RESISTING OVERALL
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 1
LP54XD058J4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 993R0049 PC 31?
993R0049 PC 31 is a SETSCREW.
What parts can replace 993R0049 PC 31?
There is 1 known substitute for 993R0049 PC 31: LP54XD058J4. Substitute compatibility should be verified for your specific system.
What is the NSN for 993R0049 PC 31?
993R0049 PC 31 is cataloged in the U.S. Government catalog under NSN 5305-01-475-4402. 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.