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Technical Data Sheet
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76-237 — SWITCH,PRESSURE

✓ Government record, cited
Hama · ORING SEAL
PRODUCT OVERVIEW

76-237: SWITCH,PRESSURE.

- for attractive close-up shots - also 2 lenses can be combined - especially for zoom lenses - better with telephoto shooting distance = perspective distance (e.g. photographing small animals without disturing them) - +2 diopters 0,33 - 0,5 m This part is cataloged in the U.S. Government catalog under NSN 5340-00-129-1963, 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
76-237
NSN: 5340-00-129-1963
NIINs: 001291963, 009328098, 009967429, 014659233
FSC: 5340 — Hardware, Commercial
CAGE: 57712 — TELEMECHANICS INC (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialPLASTIC PHENOL FORMALDEHYDE (PMO) LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width0.375 INCHES NOMINAL IN
overall_length1.750 INCHES NOMINAL IN
mounting_hole_size0.140 INCHES NOMINAL IN
end_item_identificationCOMPRESSOR
inside_diameter/arch_length1.000 INCHES NOMINAL IN
distance_between_mounting_hole_centers1.375 INCHES NOMINAL IN
distance_between_base_and_inside_of_arch0.281 INCHES NOMINAL IN
NSN5340-00-129-1963
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 76-237 MFR: Hama ⚠ 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 HOLE SIZE: 0.140 INCHES NOMINAL IN
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 1.375 INCHES NOMINAL IN
•
MOUNTING PAD: NOT INCLUDED
•
CUSHION: NOT INCLUDED
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.281 INCHES NOMINAL IN
•
MATERIAL: PLASTIC PHENOL FORMALDEHYDE (PMO) LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS
MOUNTING HOLE SIZE0.140 INCHES NOMINAL IN
DISTANCE BETWEEN MOUNTING HOLE CENTERS1.375 INCHES NOMINAL IN
MOUNTING PADNOT INCLUDED
OVERALL LENGTH1.750 INCHES NOMINAL IN
OVERALL WIDTH0.375 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.281 INCHES NOMINAL IN
MATERIALPLASTIC PHENOL FORMALDEHYDE (PMO) LOCATION NOT OTHERWISE SPECIFIED
INSIDE DIAMETER/ARCH LENGTH1.000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 76-237?
76-237 is a SWITCH,PRESSURE manufactured by Hama.
What is the NSN for 76-237?
76-237 is cataloged in the U.S. Government catalog under NSN 5340-00-129-1963. 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.