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Technical Data Sheet
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275126 — STOP,BUTTERFLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

275126: STOP,BUTTERFLY.

The STOP,BUTTERFLY is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5330-00-246-4103, 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
275126
NSN: 5330-00-246-4103
NIINs: 002464103, 006302673
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCRES TY 303;PASSIVATED MIL-S-5002;0.622 IN. LG;0.312 IN. OD;0.190-24 NC-3A THD;W/HEX INTERNAL HEX SOCKET OR SLOT DRIVE LOCATED IN. THD END A
NSN5330-00-246-4103
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 275126 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
•
SEAL WIDTH: 0.500 INCHES NOMINAL IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 2.750 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 2000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.812 INCHES NOMINAL IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.500 INCHES NOMINAL IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER2.750 INCHES NOMINAL IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED2000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.812 INCHES NOMINAL IN
MATERIALSTEEL CASE
MATERIALLEATHER SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 6
MB2164-1PC26Reference document
Same NSN cross-reference
Reference document — Secondary reference
32J655PC97Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
44J67PC8Reference document
Same NSN cross-reference
Reference document — Secondary reference
32J656PC8Reference document
Same NSN cross-reference
Reference document — Secondary reference
44J66-97Reference document
Same NSN cross-reference
Reference document — Secondary reference
00044Reference 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 275126?
275126 is a STOP,BUTTERFLY.
What parts can replace 275126?
There are 6 known substitutes for 275126: MB2164-1PC26, 32J655PC97, 44J67PC8 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 275126?
275126 is cataloged in the U.S. Government catalog under NSN 5330-00-246-4103. 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.