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99G2BS — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

99G2BS: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, body_style: PLAIN, corner_shape: SQUARE ALL CORNERS, overall_length: 0.635 INCHES NOMINAL IN, surface_finish: 125.0 MICROINCHES ALL SURFACES, body_inside_diameter: 3.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-978-8941, 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
99G2BS
NSN: 4320-00-978-8941
FSC: 4320 — Power and Hand Pumps
CAGE: 82796 — COLTEC INDUSTRIES INC. DBA FAIRBANKS MORSE ENGINE DIV FAIRBANKS MORSE ENGINE (USA)
SPECIFICATIONS
materialNICKEL ALLOY
body_stylePLAIN
corner_shapeSQUARE ALL CORNERS
overall_length0.635 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES ALL SURFACES
body_inside_diameter3.625 INCHES NOMINAL IN
body_outside_diameter4.018 INCHES NOMINAL IN
NSN4320-00-978-8941
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN 99G2BS MFR RING,WEARING
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES ALL SURFACES
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY STYLE: PLAIN
•
BODY OUTSIDE DIAMETER: 4.018 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 3.625 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES ALL SURFACES
CORNER SHAPESQUARE ALL CORNERS
BODY STYLEPLAIN
BODY OUTSIDE DIAMETER4.018 INCHES NOMINAL IN
OVERALL LENGTH0.635 INCHES NOMINAL IN
BODY INSIDE DIAMETER3.625 INCHES NOMINAL IN
MATERIALNICKEL ALLOY
OTHER ITEMS IN FSC 4320 — Power and Hand Pumps
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4320-00-001-1633 4320-00-001-2628 4320-00-001-2629 4320-00-001-2630 4320-00-001-2631 4320-00-001-2632 4320-00-001-3377 4320-00-001-3384
SUBSTITUTES & CROSS-REFERENCES 1
D2B17AGReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 99G2BS?
99G2BS is a RING,WEARING.
What parts can replace 99G2BS?
There is 1 known substitute for 99G2BS: D2B17AG. Substitute compatibility should be verified for your specific system.
What is the NSN for 99G2BS?
99G2BS is cataloged in the U.S. Government catalog under NSN 4320-00-978-8941. 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.