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Technical Data Sheet
PartsTable / COMPONENT / 2883-21
2883-21 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEAL, bore_shape: STRAIGHT, bore_diameter: 2.7557 INCHES MINIMUM AND 2.7559 INCHES MAXIMUM IN, overall_width: 2.4980 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-885-7585, 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
2883-21
NSN: 4730-00-885-7585
FSC: 4730
CAGE: 66195 — SOLAR TURBINES INCORPORATED DBA SOLAR TURBINES INCORPORATED (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEAL
bore_shapeSTRAIGHT
bore_diameter2.7557 INCHES MINIMUM AND 2.7559 INCHES MAXIMUM IN
overall_width2.4980 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN
seal_quantity2
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeLIPS TURNED OUTWARDLY
internal_clearance0.0008 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN
lubrication_materialGREASE
overall_outside_diameter5.9053 INCHES MINIMUM AND 5.9055 INCHES MAXIMUM IN
NSN4730-00-885-7585
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2883-21 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST END THREAD DIRECTION: RIGHT-HAND
•
FIRST RADIAL FLUID HOLE DIAMETER: 0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
•
FIRST END THREAD LENGTH: 0.552 INCHES MINIMUM AND 0.612 INCHES MAXIMUM IN
•
FIRST END THREAD CLASS: 3A A
•
WRENCHING FEATURE HEIGHT: 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
DISTANCE FROM FIRST RADIAL HOLE CENTER TO END OF BOLT: 1.030 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN
•
FIRST END THREAD SERIES DESIGNATOR: UNF
•
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO BOLT END: 1.336 INCHES MINIMUM AND 1.366 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END THREAD DIRECTIONRIGHT-HAND
FIRST RADIAL FLUID HOLE DIAMETER0.234 INCHES MINIMUM AND 0.266 INCHES MAXIMUM IN
FIRST END THREAD LENGTH0.552 INCHES MINIMUM AND 0.612 INCHES MAXIMUM IN
FIRST END THREAD CLASS3A A
WRENCHING FEATURE HEIGHT0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
DISTANCE FROM FIRST RADIAL HOLE CENTER TO END OF BOLT1.030 INCHES MINIMUM AND 1.090 INCHES MAXIMUM IN
FIRST END THREAD SERIES DESIGNATORUNF
LENGTH FROM BEARING SURFACE OF WRENCHING FEATURE TO BOLT END1.336 INCHES MINIMUM AND 1.366 INCHES MAXIMUM IN
WRENCHING FEATURE STYLEHEXAGON
OVERALL LENGTH1.524 INCHES MINIMUM AND 1.616 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
221-294Interchangeable
interchangeable cross-reference
interchangeable
FG1789Interchangeable
interchangeable cross-reference
interchangeable
400062Interchangeable
interchangeable cross-reference
interchangeable
28832Interchangeable
interchangeable cross-reference
interchangeable
78-8454-3419-6Interchangeable
interchangeable cross-reference
interchangeable
2796659-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2883-21?
2883-21 is a BEARING,BALL,ANNULAR.
What parts can replace 2883-21?
There are 13 known substitutes for 2883-21: 221-294, FG1789, 400062 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2883-21?
2883-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-885-7585. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026