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451709 — CYLINDER ASSEMBLY,HYDRAULIC BRAK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

451709: CYLINDER ASSEMBLY,HYDRAULIC BRAK.

CYLINDER ASSEMBLY,HYDRAULIC BRAK. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT, case_style: SQUARE, seal_width: 0.297 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF, housing_bore_diameter: 1.751 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN, sealing_element_style: ANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-216-8378, 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
451709
NSN: 5330-00-216-8378
NIINs: 002168378, 006912190
FSC: 5330 — Packing and Gasket Materials
CAGE: 11314 — HUTCHINSON SEAL CORPORATION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT
case_styleSQUARE
seal_width0.297 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
housing_bore_diameter1.751 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.247 INCHES MINIMUM AND 1.253 INCHES MAXIMUM IN
accommodated_shaft_maximum_rated_speed3000 FEET PER MINUTE FT
NSN5330-00-216-8378
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 451709 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.297 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.751 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 3000 FEET PER MINUTE FT
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.247 INCHES MINIMUM AND 1.253 INCHES MAXIMUM IN
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF
SEAL WIDTH0.297 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.751 INCHES MINIMUM AND 1.753 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED3000 FEET PER MINUTE FT
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.247 INCHES MINIMUM AND 1.253 INCHES MAXIMUM IN
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 1
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 451709?
451709 is a CYLINDER ASSEMBLY,HYDRAULIC BRAK.
What parts can replace 451709?
There is 1 known substitute for 451709: 00044. Substitute compatibility should be verified for your specific system.
What is the NSN for 451709?
451709 is cataloged in the U.S. Government catalog under NSN 5330-00-216-8378. This indicates validated use in U.S. government and defense supply chains.
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