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Technical Data Sheet
PartsTable / COMPONENT / 779-037
779-037 ✓ 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 FASTENER,FLARE LOCK is a the manufacturer industrial component. Key specifications include head_style: FLAT, head_height: 0.030 INCHES NOMINAL IN, head_diameter: 0.406 INCHES NOMINAL IN, mounting_method: SCREW, style_designator: COUNTERBORED SLEEVE, features_provided: OPEN SLEEVE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-598-9577, 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
779-037
NSN: 5340-00-598-9577
FSC: 5340
CAGE: U3788 — VERMEER EQUIPMENT (UK) LTD (GBR)
SPECIFICATIONS
head_styleFLAT
head_height0.030 INCHES NOMINAL IN
head_diameter0.406 INCHES NOMINAL IN
mounting_methodSCREW
style_designatorCOUNTERBORED SLEEVE
features_providedOPEN SLEEVE
nominal_thread_size0.138 INCHES IN
internal_drive_styleCROSS RECESS
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
hole_size_for_which_designed0.297 INCHES NOMINAL IN
screw_minimum_length_for_which_designed0.625 INCHES IN
NSN5340-00-598-9577
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 779-037 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
•
HEAD DIAMETER: 0.406 INCHES NOMINAL IN
•
SCREW MINIMUM LENGTH FOR WHICH DESIGNED: 0.625 INCHES IN
•
MATERIAL THICKNESS RANGE FOR WHICH DESIGNED: +0.080 TO 0.115 INCHES IN
•
HEAD STYLE: FLAT
•
MOUNTING METHOD: SCREW
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
FEATURES PROVIDED: OPEN SLEEVE
•
THREAD QUANTITY PER INCH: 32
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.406 INCHES NOMINAL IN
SCREW MINIMUM LENGTH FOR WHICH DESIGNED0.625 INCHES IN
MATERIAL THICKNESS RANGE FOR WHICH DESIGNED+0.080 TO 0.115 INCHES IN
HEAD STYLEFLAT
MOUNTING METHODSCREW
NOMINAL THREAD SIZE0.138 INCHES IN
FEATURES PROVIDEDOPEN SLEEVE
THREAD QUANTITY PER INCH32
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HEAD HEIGHT0.030 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
6862Upgraded Successor
successor cross-reference
successor
K-300Upgraded Successor
successor cross-reference
successor
6530NCM082414Upgraded Successor
successor cross-reference
successor
RE 001768969Interchangeable
interchangeable cross-reference
interchangeable
10292Interchangeable
interchangeable cross-reference
interchangeable
B107.1 TY1CL1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 779-037?
779-037 is a FASTENER,FLARE LOCK.
What parts can replace 779-037?
There are 10 known substitutes for 779-037: 6862, K-300, 6530NCM082414 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 779-037?
779-037 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-598-9577. 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