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Technical Data Sheet
PartsTable / COMPONENT / 2994953-3
2994953-3 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include thread_class: 2B RIGHT INTERNAL, thread_direction: RIGHT-HAND RIGHT INTERNAL, width_across_flats: 0.250 INCHES NOMINAL IN, nominal_thread_size: 0.112 INCHES RIGHT INTERNAL IN, cross-sectional_shape: HEXAGON, cross-sectional_length: 0.250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-401-5966, 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
2994953-3
NSN: 5340-00-401-5966
FSC: 5340
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
thread_class2B RIGHT INTERNAL
thread_directionRIGHT-HAND RIGHT INTERNAL
width_across_flats0.250 INCHES NOMINAL IN
nominal_thread_size0.112 INCHES RIGHT INTERNAL IN
cross-sectional_shapeHEXAGON
cross-sectional_length0.250 INCHES NOMINAL IN
thread_quantity_per_inch40 RIGHT INTERNAL
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
NSN5340-00-401-5966
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2994953-3 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD DIRECTION: RIGHT-HAND RIGHT INTERNAL
•
WIDTH ACROSS FLATS: 0.250 INCHES NOMINAL IN
•
THREAD CLASS: 2B RIGHT INTERNAL
•
NOMINAL THREAD SIZE: 0.112 INCHES RIGHT INTERNAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
•
CROSS-SECTIONAL LENGTH: 0.250 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 40 RIGHT INTERNAL
•
CROSS-SECTIONAL SHAPE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND RIGHT INTERNAL
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
THREAD CLASS2B RIGHT INTERNAL
NOMINAL THREAD SIZE0.112 INCHES RIGHT INTERNAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) LEFT INTERNAL (INCLUDES THRU THREAD)
CROSS-SECTIONAL LENGTH0.250 INCHES NOMINAL IN
THREAD QUANTITY PER INCH40 RIGHT INTERNAL
CROSS-SECTIONAL SHAPEHEXAGON
SPECIAL FEATURESMATERIAL: STEEL COMP 303 OVERALL;MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A582 ASSN STD SINGLE MATERIAL RESPONSE OVERALL;SURFACE TREATMENT: PASSIVATE OVERALL;SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL;BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
532353-628Upgraded Successor
successor cross-reference
successor
SS6951-0632-2.500-01Upgraded Successor
successor cross-reference
successor
0N664167Upgraded Successor
successor cross-reference
successor
ES3684-01B08A08Interchangeable
Same NIIN cross-reference
interchangeable
NAS1831Interchangeable
Same NIIN cross-reference
interchangeable
8211SS0440-7Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2994953-3?
2994953-3 is a STANDOFF,THREADED,SPACING.
What parts can replace 2994953-3?
There are 10 known substitutes for 2994953-3: 532353-628, SS6951-0632-2.500-01, 0N664167 and 7 more. Substitute compatibility should be verified for your specific system.
Is 2994953-3 still available?
2994953-3 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