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HC-16-4 — CLAMP,BLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HC-16-4: CLAMP,BLOCK.

The CLAMP,BLOCK is a the manufacturer industrial component. Key specifications include overall_width: 0.75 INCHES NOMINAL0.75 INCHES NOMINAL IN, overall_height: 2.00 INCHES NOMINAL2.00 INCHES NOMINAL IN, overall_length: 7.89 INCHES NOMINAL7.89 INCHES NOMINAL IN, style_designator: RECTANGULAR, clamping_hole_diameter: 0.59 INCHES NOMINAL ALL HOLES IN, clamping_hole_quantity: 44. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-689-7367, 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
HC-16-4
NSN: 5340-01-689-7367
FSC: 5340 — Hardware, Commercial
CAGE: 23619 — HYDRO-CRAFT, INC. (USA)
SPECIFICATIONS
overall_width0.75 INCHES NOMINAL0.75 INCHES NOMINAL IN
overall_height2.00 INCHES NOMINAL2.00 INCHES NOMINAL IN
overall_length7.89 INCHES NOMINAL7.89 INCHES NOMINAL IN
style_designatorRECTANGULAR
clamping_hole_diameter0.59 INCHES NOMINAL ALL HOLES IN
clamping_hole_quantity44
part_name_assigned_by_controlling_agencyUNIT, CLAMPING
distance_from_end_to_first_mounting_hole_center1.93 INCHES NOMINAL IN
distance_from_center_of_mounting_hole_to_edge_along_the_width1.00 INCHES NOMINAL1.00 INCHES NOMINAL IN
NSN5340-01-689-7367
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HC-16-4 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
•
CLAMPING HOLE QUANTITY: 44
•
STYLE DESIGNATOR: RECTANGULAR
•
CLAMPING HOLE DIAMETER: 0.59 INCHES NOMINAL ALL HOLES IN
•
DISTANCE FROM CENTER OF MOUNTING HOLE TO EDGE ALONG THE WIDTH: 1.00 INCHES NOMINAL1.00 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST MOUNTING HOLE CENTER: 1.93 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.00 INCHES NOMINAL2.00 INCHES NOMINAL IN
CLAMPING HOLE QUANTITY44
STYLE DESIGNATORRECTANGULAR
OVERALL LENGTH7.89 INCHES NOMINAL7.89 INCHES NOMINAL IN
OVERALL WIDTH0.75 INCHES NOMINAL0.75 INCHES NOMINAL IN
CLAMPING HOLE DIAMETER0.59 INCHES NOMINAL ALL HOLES IN
DISTANCE FROM CENTER OF MOUNTING HOLE TO EDGE ALONG THE WIDTH1.00 INCHES NOMINAL1.00 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST MOUNTING HOLE CENTER1.93 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYUNIT, CLAMPING
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 HC-16-4?
HC-16-4 is a CLAMP,BLOCK.
What is the NSN for HC-16-4?
HC-16-4 is cataloged in the U.S. Government catalog under NSN 5340-01-689-7367. 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.