PartsTable
Technical Data Sheet
Download PDF

369A5121 — RETAINER,SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

369A5121: RETAINER,SEAL.

The RETAINER,SEAL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440A RETAINER A, overall_height: 0.396 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN, seal_seat_depth: 0.137 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN, flange_thickness: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN, aperture_diameter: 1.380 INCHES MINIMUM AND 1.382 INCHES MAXIMUM IN, seal_seat_diameter: 1.475 INCHES MINIMUM AND 1.478 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-945-3937, 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
369A5121
NSN: 5330-00-945-3937
FSC: 5330 — Packing and Gasket Materials
CAGE: 8V613 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 440A RETAINER A
overall_height0.396 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
seal_seat_depth0.137 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
flange_thickness0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
aperture_diameter1.380 INCHES MINIMUM AND 1.382 INCHES MAXIMUM IN
seal_seat_diameter1.475 INCHES MINIMUM AND 1.478 INCHES MAXIMUM IN
body_outside_diameter1.677 INCHES MINIMUM AND 1.697 INCHES MAXIMUM IN
mounting_flange_diameter2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE RETAINER
NSN5330-00-945-3937
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 369A5121 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
•
FLANGE THICKNESS: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 1.677 INCHES MINIMUM AND 1.697 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE RETAINER
•
SEAL SEAT DIAMETER: 1.475 INCHES MINIMUM AND 1.478 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 1.380 INCHES MINIMUM AND 1.382 INCHES MAXIMUM IN
•
MOUNTING FLANGE DIAMETER: 2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.396 INCHES MINIMUM AND 0.400 INCHES MAXIMUM IN
FLANGE THICKNESS0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.677 INCHES MINIMUM AND 1.697 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE RETAINER
SEAL SEAT DIAMETER1.475 INCHES MINIMUM AND 1.478 INCHES MAXIMUM IN
APERTURE DIAMETER1.380 INCHES MINIMUM AND 1.382 INCHES MAXIMUM IN
SPECIAL FEATURESROCKWELL HARDNESS RATING C SCALE 50 TO 55 MAX SURFACE FINISH,RIGHT END 32 MICROINCHES AA,ID AND SEAL SEAT ID 63 MICROINCHES AA,OD FLANGE OD,FLANGE W 125 MICROINCHES AA,FLANGE AND BODY LEFT END LAPPED WITHIN 3 HELIUM LIGHT BANDS,FLUORESCENT PENETRANT INSPECTED MIL-1-6866
MOUNTING FLANGE DIAMETER2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN
MATERIALSTEEL COMP 440A RETAINER A
SEAL SEAT DEPTH0.137 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 369A5121?
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 369A5121?
369A5121 is a RETAINER,SEAL.
What is the NSN for 369A5121?
369A5121 is cataloged in the U.S. Government catalog under NSN 5330-00-945-3937. 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 — 369A5121

✓ 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.