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993R0049 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

993R0049: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include thread_class: 2A A, screw_material: COPPER ALLOY, fastener_length: 0.500 INCHES NOMINAL IN, special_features: 3/8-16X2"LG; TYPE II REDUCED BODY; STEEL, thread_direction: RIGHT-HAND, end_item_identification: PUMP. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-467-1757, 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
NSN: 5305-01-467-1757
NIINs: 014671757, 014688474, 014753030
FSC: 5305 — Screws
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
thread_class2A A
screw_materialCOPPER ALLOY
fastener_length0.500 INCHES NOMINAL IN
special_features3/8-16X2"LG; TYPE II REDUCED BODY; STEEL
thread_directionRIGHT-HAND
end_item_identificationPUMP
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
nondefinitive_spec/std_data2 GRADE AND C CLASS
NSN5305-01-467-1757
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 993R0049 · 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: 0.500 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: COPPER ALLOY
•
THREAD CLASS: 2A A
•
THREAD QUANTITY PER INCH: 24
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
FASTENER LENGTH0.500 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALCOPPER ALLOY
THREAD CLASS2A A
END ITEM IDENTIFICATIONPUMP
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SUBSTITUTES & CROSS-REFERENCES 1
993R0049 PC 64Same 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?
993R0049 is a SCREW,MACHINE.
What parts can replace 993R0049?
There is 1 known substitute for 993R0049: 993R0049 PC 64. Substitute compatibility should be verified for your specific system.
What is the NSN for 993R0049?
993R0049 is cataloged in the U.S. Government catalog under NSN 5305-01-467-1757. 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.