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HL-1976 — TAPPET,ENGINE POPPET VALVE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

HL-1976: TAPPET,ENGINE POPPET VALVE.

The TAPPET,ENGINE POPPET VALVE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, lubrication: GREASE FILM OR CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP, collar_style: THREADED (BREAK OFF) TYPE, thread_class: 3B, adjustability: NONADJUSTABLE, overall_length: 1.830 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-188-9008, 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
HL-1976
NSN: 2805-00-188-9008
NIINs: 001889008, 010040893
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 72156 — ELGIN INDUSTRIES INC. DBA (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
lubricationGREASE FILM OR CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP
collar_styleTHREADED (BREAK OFF) TYPE
thread_class3B
adjustabilityNONADJUSTABLE
overall_length1.830 INCHES NOMINAL IN
cam_end_diameter0.904 INCHES NOMINAL IN
operation_methodHYDRAULIC
size_designationSTANDARD
special_featuresTWO GROOVES INSIDE COUNTERBORE,0.200 IN.WIDE,0.660 IN.ID IN
style_designatorCOUNTERBORED PUSH ROD END
thread_directionRIGHT-HAND
NSN2805-00-188-9008
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAPPET,ENGINE POPPET VALVE TITLE COMPONENT PN HL-1976 MFR TAPPET,ENGINE POPPET V
KEY FEATURES
•
CAM END DIAMETER: 0.904 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.902 INCHES NOMINAL IN
•
CUP SPHERICAL RADIUS: 0.188 INCHES NOMINAL IN
•
BODY GROOVE WIDTH: 0.140 INCHES NOMINAL IN
•
STYLE DESIGNATOR: COUNTERBORED PUSH ROD END
•
DISTANCE FROM BODY GROOVE CENTER TO CAM END: 1.480 INCHES NOMINAL IN
•
ADJUSTABILITY: NONADJUSTABLE
TECHNICAL CHARACTERISTICS
CAM END DIAMETER0.904 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.902 INCHES NOMINAL IN
CUP SPHERICAL RADIUS0.188 INCHES NOMINAL IN
BODY GROOVE WIDTH0.140 INCHES NOMINAL IN
STYLE DESIGNATORCOUNTERBORED PUSH ROD END
OVERALL LENGTH1.830 INCHES NOMINAL IN
DISTANCE FROM BODY GROOVE CENTER TO CAM END1.480 INCHES NOMINAL IN
ADJUSTABILITYNONADJUSTABLE
COUNTERBORE DIAMETER0.644 INCHES NOMINAL IN
BODY GROOVE DIAMETER0.783 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 2
VL65Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3004647Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 HL-1976?
HL-1976 is a TAPPET,ENGINE POPPET VALVE.
What parts can replace HL-1976?
There are 2 known substitutes for HL-1976: VL65, 3004647. Substitute compatibility should be verified for your specific system.
What is the NSN for HL-1976?
HL-1976 is cataloged in the U.S. Government catalog under NSN 2805-00-188-9008. 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.