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309074 — CLAMP,SYNCHRO

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

309074: CLAMP,SYNCHRO.

The CLAMP,SYNCHRO is a the manufacturer industrial component. Key specifications include height: 0.1560 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, thread_class: 2B, effective_height: 0.0930 INCHES NOMINAL IN, outside_diameter: 0.3800 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM IN, special_features: THE INSERT IS MADE OF NYLON. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-056-5429, 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
309074
NSN: 5340-00-056-5429
NIINs: 000565429, 009846629, 010799917
FSC: 5340 — Hardware, Commercial
CAGE: 06773 — TIMBER TOP INC (USA)
SPECIFICATIONS
height0.1560 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
thread_class2B
effective_height0.0930 INCHES NOMINAL IN
outside_diameter0.3800 INCHES MINIMUM AND 0.3900 INCHES MAXIMUM IN
special_featuresTHE INSERT IS MADE OF NYLON
style_designatorCLEAT
features_providedINSERT
nominal_thread_size0.1120 INCHES IN
thread_quantity_per_inch40
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
distance_from_hole_center_to_end0.1250 INCHES NOMINAL IN
NSN5340-00-056-5429
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 309074 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
•
LENGTH: 0.317 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD 1ST MATERIAL RESPONSE OR MIL-M-20693,COMP A,TYPE 1 MIL SPEC 2ND MATERIAL RESPONSE
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
HEIGHT: 0.156 INCHES NOMINAL IN
•
WIDTH: 0.385 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
MATERIAL: STEEL COMP 1012 OR PLASTIC POLYHEXAMETHYLENE AMIDE
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
TECHNICAL CHARACTERISTICS
LENGTH0.317 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD 1ST MATERIAL RESPONSE OR MIL-M-20693,COMP A,TYPE 1 MIL SPEC 2ND MATERIAL RESPONSE
NOMINAL THREAD SIZE0.112 INCHES IN
HEIGHT0.156 INCHES NOMINAL IN
WIDTH0.385 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
THREAD CLASS2A A
MATERIALSTEEL COMP 1012 OR PLASTIC POLYHEXAMETHYLENE AMIDE
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
FURNISHED ITEMSLOCKNUT
SUBSTITUTES & CROSS-REFERENCES 10
993905-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
414765-20Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
5772707Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
5381813-14Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
GC503E04EERReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
B22-9001-001Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 309074?
309074 is a CLAMP,SYNCHRO.
What parts can replace 309074?
There are 10 known substitutes for 309074: 993905-1, 414765-20, 5772707 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 309074?
309074 is cataloged in the U.S. Government catalog under NSN 5340-00-056-5429. 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.