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PartsTable / COMPONENT / HS1043-21
HS1043-21 ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE AND GLYCERIN OVERALL, hole_diameter: 0.400 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 3.190 INCHES MINIMUM AND 3.220 INCHES MAXIMUM IN, aperture_diameter: 1.880 INCHES NOMINAL IN, bolt_circle_diameter: 2.690 INCHES NOMINAL IN, maximum_pressure_rating: 800.0 POUNDS PER SQUARE INCH (PSI) LBS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-609-7718, 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
HS1043-21
NSN: 5330-00-609-7718
FSC: 5330
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialPAPER AND GLUE AND GLYCERIN OVERALL
hole_diameter0.400 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter3.190 INCHES MINIMUM AND 3.220 INCHES MAXIMUM IN
aperture_diameter1.880 INCHES NOMINAL IN
bolt_circle_diameter2.690 INCHES NOMINAL IN
maximum_pressure_rating800.0 POUNDS PER SQUARE INCH (PSI) LBS
cross-sectional_thickness0.020 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-609-7718
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HS1043-21 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
•
MAXIMUM PRESSURE RATING: 800.0 POUNDS PER SQUARE INCH (PSI) LBS
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
MATERIAL: PAPER AND GLUE AND GLYCERIN OVERALL
•
APERTURE DIAMETER: 1.880 INCHES NOMINAL IN
•
CROSS-SECTIONAL THICKNESS: 0.020 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: HH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
BOLT CIRCLE DIAMETER: 2.690 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 3.190 INCHES MINIMUM AND 3.220 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MAXIMUM PRESSURE RATING800.0 POUNDS PER SQUARE INCH (PSI) LBS
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
MATERIALPAPER AND GLUE AND GLYCERIN OVERALL
APERTURE DIAMETER1.880 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.020 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
BOLT CIRCLE DIAMETER2.690 INCHES NOMINAL IN
OUTSIDE DIAMETER3.190 INCHES MINIMUM AND 3.220 INCHES MAXIMUM IN
HOLE DIAMETER0.400 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
20023Interchangeable
interchangeable cross-reference
interchangeable
MILT55164-1Interchangeable
interchangeable cross-reference
interchangeable
AA59125/01-37TB23Interchangeable
interchangeable cross-reference
interchangeable
2410 23/64Interchangeable
interchangeable cross-reference
interchangeable
10023Interchangeable
interchangeable cross-reference
interchangeable
2511 23/64Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HS1043-21?
HS1043-21 is a GASKET.
What parts can replace HS1043-21?
There are 12 known substitutes for HS1043-21: 20023, MILT55164-1, AA59125/01-37TB23 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for HS1043-21?
HS1043-21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-609-7718. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026