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311-51-ZN — HANDLE,MANUAL CONTROL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

311-51-ZN: HANDLE,MANUAL CONTROL.

The HANDLE,MANUAL CONTROL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1040 HANDLE, mounting_method: UNTHREADED HOLE(S), surface_treatment: ZINC HANDLE, mounting_facility_width: 1.000 INCHES NOMINAL IN, mounting_facility_length: 9.650 INCHES NOMINAL IN, mounting_facility_diameter: 0.392 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-437-2623, 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
311-51-ZN
NSN: 5340-01-437-2623
NIINs: 014372623, 015782259
FSC: 5340 — Hardware, Commercial
CAGE: 3J615 — ALLEGIS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1040 HANDLE
mounting_methodUNTHREADED HOLE(S)
surface_treatmentZINC HANDLE
mounting_facility_width1.000 INCHES NOMINAL IN
mounting_facility_length9.650 INCHES NOMINAL IN
mounting_facility_diameter0.392 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
mounting_facility_quantity2
material_document_and_classificationAISI 1040 ASSN STD SINGLE MATERIAL RESPONSE HANDLE
NSN5340-01-437-2623
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 311-51-ZN 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
•
MOUNTING FACILITY DIAMETER: 0.392 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
•
MOUNTING FACILITY QUANTITY: 2
•
MOUNTING FACILITY LENGTH: 9.650 INCHES NOMINAL IN
•
MOUNTING METHOD: UNTHREADED HOLE(S)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 1040 ASSN STD SINGLE MATERIAL RESPONSE HANDLE
•
SURFACE TREATMENT: ZINC HANDLE
•
MATERIAL: STEEL COMP 1040 HANDLE
•
MOUNTING FACILITY WIDTH: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY DIAMETER0.392 INCHES MINIMUM AND 0.396 INCHES MAXIMUM IN
MOUNTING FACILITY QUANTITY2
MOUNTING FACILITY LENGTH9.650 INCHES NOMINAL IN
MOUNTING METHODUNTHREADED HOLE(S)
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 1040 ASSN STD SINGLE MATERIAL RESPONSE HANDLE
SURFACE TREATMENTZINC HANDLE
MATERIALSTEEL COMP 1040 HANDLE
MOUNTING FACILITY WIDTH1.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
311-6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
3075AS275-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
105-6Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 311-51-ZN?
311-51-ZN is a HANDLE,MANUAL CONTROL.
What parts can replace 311-51-ZN?
There are 3 known substitutes for 311-51-ZN: 311-6, 3075AS275-1, 105-6. Substitute compatibility should be verified for your specific system.
What is the NSN for 311-51-ZN?
311-51-ZN is cataloged in the U.S. Government catalog under NSN 5340-01-437-2623. This indicates validated use in U.S. government and defense supply chains.
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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.