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B133A — RING,WEARING

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B133A: RING,WEARING.

The RING,WEARING is a the manufacturer industrial component. Key specifications include material: STEEL, body_style: PLAIN, corner_shape: CHAMFERED INSIDE RIGHT CORNER, groove_depth: 0.031 INCHES NOMINAL IN, groove_width: 0.125 INCHES NOMINAL IN, chamfer_angle: 45.0 DEGREES NOMINAL INSIDE RIGHT CORNER. This part is cataloged in the U.S.

Government catalog under NSN 4320-00-770-0296, 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
B133A
NSN: 4320-00-770-0296
FSC: 4320 — Power and Hand Pumps
CAGE: 63857 — CIRCOR NAVAL SOLUTIONS LLC DBA WARREN PUMPS (USA)
SPECIFICATIONS
materialSTEEL
body_stylePLAIN
corner_shapeCHAMFERED INSIDE RIGHT CORNER
groove_depth0.031 INCHES NOMINAL IN
groove_width0.125 INCHES NOMINAL IN
chamfer_angle45.0 DEGREES NOMINAL INSIDE RIGHT CORNER
chamfer_length0.062 INCHES NOMINAL INSIDE RIGHT CORNER IN
overall_length0.562 INCHES NOMINAL IN
surface_finish125.0 MICROINCHES ALL SURFACES
groove_quantity2
body_inside_diameter3.062 INCHES MINIMUM AND 3.064 INCHES MAXIMUM IN
body_outside_diameter3.434 INCHES NOMINAL IN
NSN4320-00-770-0296
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,WEARING TITLE COMPONENT PN B133A MFR RING,WEARING
KEY FEATURES
•
SURFACE FINISH: 125.0 MICROINCHES ALL SURFACES
•
CORNER SHAPE: SQUARE OUTSIDE RIGHT CORNER
•
CHAMFER LENGTH: 0.062 INCHES NOMINAL INSIDE RIGHT CORNER IN
•
BODY STYLE: PLAIN
•
BODY OUTSIDE DIAMETER: 3.434 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES ALL SURFACES
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
CHAMFER LENGTH0.062 INCHES NOMINAL INSIDE RIGHT CORNER IN
BODY STYLEPLAIN
BODY OUTSIDE DIAMETER3.434 INCHES NOMINAL IN
OVERALL LENGTH0.562 INCHES NOMINAL IN
GROOVE DEPTH0.031 INCHES NOMINAL IN
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
R-816 PC9Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B133A?
B133A is a RING,WEARING.
What parts can replace B133A?
There is 1 known substitute for B133A: R-816 PC9. Substitute compatibility should be verified for your specific system.
What is the NSN for B133A?
B133A is cataloged in the U.S. Government catalog under NSN 4320-00-770-0296. 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.