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ST9M451-1 — CATCH,FLUSH

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ST9M451-1: CATCH,FLUSH.

The CATCH,FLUSH is a the manufacturer industrial component. Key specifications include width: 1.980 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN, length: 3.500 INCHES NOMINAL IN, material: UNABLE TO DECODE, special_features: MATL:WASHER STEEL,BRACKET STEEL,BOLT ALUM. ALLOY;WASHER AND BRACKET PASSIVATED, style_designator: FLUSH LEVER ACTUATOR, surface_treatment: UNABLE TO DECODE.

This part is cataloged in the U.S. Government catalog under NSN 5340-01-332-7610, 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
ST9M451-1
NSN: 5340-01-332-7610
FSC: 5340 — Hardware, Commercial
CAGE: 09094 — QRP INC (USA)
SPECIFICATIONS
width1.980 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
length3.500 INCHES NOMINAL IN
materialUNABLE TO DECODE
special_featuresMATL:WASHER STEEL,BRACKET STEEL,BOLT ALUM. ALLOY;WASHER AND BRACKET PASSIVATED
style_designatorFLUSH LEVER ACTUATOR
surface_treatmentUNABLE TO DECODE
bolt_offset_distance0.010 INCHES NOMINAL IN
lever_offset_distance0.260 INCHES NOMINAL IN
mounting_hole_diameter0.159 INCHES NOMINAL IN
center_to_center_distance_between_mounting_holes_along_width1.480 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
center_to_center_distance_between_mounting_holes_along_length1.361 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
NSN5340-01-332-7610
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ST9M451-1 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
•
BOLT OFFSET DISTANCE: 0.010 INCHES NOMINAL IN
•
LENGTH: 3.500 INCHES NOMINAL IN
•
LEVER OFFSET DISTANCE: 0.260 INCHES NOMINAL IN
•
STYLE DESIGNATOR: FLUSH LEVER ACTUATOR
•
MOUNTING HOLE DIAMETER: 0.159 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH: 1.480 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH: 1.361 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
BOLT OFFSET DISTANCE0.010 INCHES NOMINAL IN
LENGTH3.500 INCHES NOMINAL IN
LEVER OFFSET DISTANCE0.260 INCHES NOMINAL IN
STYLE DESIGNATORFLUSH LEVER ACTUATOR
MOUNTING HOLE DIAMETER0.159 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH1.480 INCHES MINIMUM AND 1.530 INCHES MAXIMUM IN
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH1.361 INCHES MINIMUM AND 1.365 INCHES MAXIMUM IN
SPECIAL FEATURESMATL:WASHER STEEL,BRACKET STEEL,BOLT ALUM. ALLOY;WASHER AND BRACKET PASSIVATED
SURFACE TREATMENTUNABLE TO DECODE
WIDTH1.980 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 3
13QRP21-5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HK5L2422-5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H2422-5Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST9M451-1?
ST9M451-1 is a CATCH,FLUSH.
What parts can replace ST9M451-1?
There are 3 known substitutes for ST9M451-1: 13QRP21-5, HK5L2422-5, H2422-5. Substitute compatibility should be verified for your specific system.
What is the NSN for ST9M451-1?
ST9M451-1 is cataloged in the U.S. Government catalog under NSN 5340-01-332-7610. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.