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161K0191-3 — CLAMP,BLOCK

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

161K0191-3: CLAMP,BLOCK.

The CLAMP,BLOCK is a the manufacturer industrial component. Key specifications include material: PLASTIC, block_height: 1.420 INCHES NOMINAL1.420 INCHES NOMINAL IN, overall_height: 3.000 INCHES NOMINAL3.000 INCHES NOMINAL IN, overall_length: 3.380 INCHES NOMINAL3.380 INCHES NOMINAL IN, style_designator: RECTANGULAR, mounting_facility: UNTHREADED HOLE(S)UNTHREADED HOLE(S). This part is cataloged in the U.S.

Government catalog under NSN 5340-01-516-6618, 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
161K0191-3
NSN: 5340-01-516-6618
FSC: 5340 — Hardware, Commercial
CAGE: 94833 — KECO INDUSTRIES, INC. (USA)
SPECIFICATIONS
materialPLASTIC
block_height1.420 INCHES NOMINAL1.420 INCHES NOMINAL IN
overall_height3.000 INCHES NOMINAL3.000 INCHES NOMINAL IN
overall_length3.380 INCHES NOMINAL3.380 INCHES NOMINAL IN
style_designatorRECTANGULAR
mounting_facilityUNTHREADED HOLE(S)UNTHREADED HOLE(S)
clamping_hole_diameter1.900 INCHES NOMINAL SINGLE HOLE IN
clamping_hole_quantity11
mounting_hole_quantity22
end_item_identificationREVERSE OSMOSISREVERSE OSMOSIS
distance_from_end_to_first_clamping_hole_center1.690 INCHES NOMINAL IN
distance_from_end_to_first_mounting_hole_center0.395 INCHES NOMINAL IN
NSN5340-01-516-6618
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 161K0191-3 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
•
MOUNTING HOLE QUANTITY: 22
•
CLAMPING HOLE QUANTITY: 11
•
DISTANCE FROM END TO FIRST CLAMPING HOLE CENTER: 1.690 INCHES NOMINAL IN
•
BLOCK HEIGHT: 1.420 INCHES NOMINAL1.420 INCHES NOMINAL IN
•
STYLE DESIGNATOR: RECTANGULAR
•
CENTER TO CENTER DISTANCE BETWEEN FIRST AND THIRD MOUNTING HOLES: 2.590 INCHES NOMINAL2.590 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY22
OVERALL HEIGHT3.000 INCHES NOMINAL3.000 INCHES NOMINAL IN
CLAMPING HOLE QUANTITY11
DISTANCE FROM END TO FIRST CLAMPING HOLE CENTER1.690 INCHES NOMINAL IN
BLOCK HEIGHT1.420 INCHES NOMINAL1.420 INCHES NOMINAL IN
STYLE DESIGNATORRECTANGULAR
OVERALL LENGTH3.380 INCHES NOMINAL3.380 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN FIRST AND THIRD MOUNTING HOLES2.590 INCHES NOMINAL2.590 INCHES NOMINAL IN
CLAMPING HOLE DIAMETER1.900 INCHES NOMINAL SINGLE HOLE IN
DISTANCE FROM END TO FIRST MOUNTING HOLE CENTER0.395 INCHES NOMINAL IN
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 3
161K0191 PN 5334PPReference document
Same NSN cross-reference
Reference document — Design control — primary reference
5334PPSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
161K0000 ITEM 84Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
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 161K0191-3?
161K0191-3 is a CLAMP,BLOCK.
What parts can replace 161K0191-3?
There are 3 known substitutes for 161K0191-3: 161K0191 PN 5334PP, 5334PP, 161K0000 ITEM 84. Substitute compatibility should be verified for your specific system.
What is the NSN for 161K0191-3?
161K0191-3 is cataloged in the U.S. Government catalog under NSN 5340-01-516-6618. 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.