PartsTable
Technical Data Sheet
A55-261 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, peripheral_diameter: 0.439 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN, center_hole_diameter: 0.290 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN, cross-sectional_height: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN, cross-sectional_thickness: 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN, cross-sectional_shape_style: CUP. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-576-3022, 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
A55-261
NSN: 5330-00-576-3022
FSC: 5330
CAGE: 96152 — BORG-WARNER CORP MARVEL-SCHEBLER/TILLOTSON DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
peripheral_diameter0.439 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN
center_hole_diameter0.290 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN
cross-sectional_height0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
cross-sectional_thickness0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN
cross-sectional_shape_styleCUP
material_document_and_classificationSAE 70 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-576-3022
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A55-261 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
CROSS-SECTIONAL HEIGHT: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
MATERIAL: COPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 70 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL DIAMETER: 0.439 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN
CROSS-SECTIONAL THICKNESS: 0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: CUP
CENTER HOLE DIAMETER: 0.290 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL HEIGHT0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 70 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PERIPHERAL DIAMETER0.439 INCHES MINIMUM AND 0.441 INCHES MAXIMUM IN
CROSS-SECTIONAL THICKNESS0.018 INCHES MINIMUM AND 0.022 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLECUP
CENTER HOLE DIAMETER0.290 INCHES MINIMUM AND 0.292 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
N55261Interchangeable
interchangeable cross-reference
interchangeable
55261Interchangeable
interchangeable cross-reference
interchangeable
15845N PIECE 32Interchangeable
interchangeable cross-reference
interchangeable
55-26Interchangeable
interchangeable cross-reference
interchangeable
55-26-2Interchangeable
interchangeable cross-reference
interchangeable
113-400Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
Ready to buy A55-261?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is A55-261?
A55-261 is a RETAINER,PACKING.
What parts can replace A55-261?
There are 7 known substitutes for A55-261: N55261, 55261, 15845N PIECE 32 and 4 more. Substitute compatibility should be verified for your specific system.
Is A55-261 still available?
A55-261 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A55-261