PartsTable
Technical Data Sheet
Download PDF

A55R1 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A55R1: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 30.0 DEGREES NOMINAL, material: COPPER ALLOY OVERALL, peripheral_diameter: 1.000 INCHES NOMINAL IN, center_hole_diameter: 0.438 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN, fsc_application_data: WASHER,PHOTOGRAPHIC PRINT, cross-sectional_height: 0.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-202-4549, 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
A55R1
NSN: 5330-00-202-4549
FSC: 5330 — Packing and Gasket Materials
CAGE: 1Z473 — PAKON INC DBA IMPAK DIVISION (USA)
SPECIFICATIONS
angle30.0 DEGREES NOMINAL
materialCOPPER ALLOY OVERALL
peripheral_diameter1.000 INCHES NOMINAL IN
center_hole_diameter0.438 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
fsc_application_dataWASHER,PHOTOGRAPHIC PRINT
cross-sectional_height0.625 INCHES NOMINAL IN
cross-sectional_shape_styleFLANGE
flanged_body_outside_diameter0.750 INCHES NOMINAL IN
NSN5330-00-202-4549
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A55R1 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
•
FSC APPLICATION DATA: WASHER,PHOTOGRAPHIC PRINT
•
CROSS-SECTIONAL HEIGHT: 0.625 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGE
•
ANGLE: 30.0 DEGREES NOMINAL
•
FLANGED BODY OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
PERIPHERAL DIAMETER: 1.000 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.438 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAWASHER,PHOTOGRAPHIC PRINT
CROSS-SECTIONAL HEIGHT0.625 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLANGE
ANGLE30.0 DEGREES NOMINAL
FLANGED BODY OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
PERIPHERAL DIAMETER1.000 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.438 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy A55R1?
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 A55R1?
A55R1 is a RETAINER,PACKING.
What is the NSN for A55R1?
A55R1 is cataloged in the U.S. Government catalog under NSN 5330-00-202-4549. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — A55R1

✓ 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.