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Technical Data Sheet
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178220 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
Hama · ORING SEAL
PRODUCT OVERVIEW

178220: ADAPTER,STRAIGHT,TUBE TO BOSS.

- Superior premium quality with respect to workmanship and performance - Charging process optimized for the device which guarantees maximum charging speed - Optimized charging process saves the battery thus extending its service life - Non-slip rubber coating on the support plate for safe charging - Exclusive design with a stylish high-gloss look - Wireless charging of smartphones with Qi technology This part is cataloged in the U.S. Government catalog under NSN 5340-00-786-1404, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
178220
NSN: 5340-00-786-1404
NIINs: 007861404, 013644404
FSC: 5340 — Hardware, Commercial
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle45.0 DEGREES
leg_length0.680 INCHES NOMINAL FIRST END IN
thread_class2A ALL ENDS A
connection_typeTHREADED EXTERNAL BOSS SECOND END
connection_stylePLAIN (TUBE) FIRST END
special_featuresSPECIAL O-RING MATERIAL, PER MIL-P-5510C, DO NOT DUPE TO ANY OTHER NSN
nominal_thread_size0.562 INCHES SECOND END IN
end_item_identification2320-01-304-2277
thread_series_designatorUNF ALL ENDS
nondefinitive_spec/std_data10 FIGURE
specification/standard_data81343-J1453 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5340-00-786-1404
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 178220 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
•
LEFT COUNTERBORE DEPTH: 1.344 INCHES NOMINAL IN
•
LENGTH: 1.578 INCHES NOMINAL IN
•
LEFT SLOT WIDTH: 0.138 INCHES NOMINAL IN
•
STYLE DESIGNATOR: LEFT INTERNAL THREAD
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DIAMETER: 0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN
•
LEFT COUNTERBORE DIAMETER: 0.458 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE: ROUND
•
DISTANCE FROM END TO HOLE CENTER: 0.546 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LEFT COUNTERBORE DEPTH1.344 INCHES NOMINAL IN
LENGTH1.578 INCHES NOMINAL IN
LEFT SLOT WIDTH0.138 INCHES NOMINAL IN
STYLE DESIGNATORLEFT INTERNAL THREAD
DIAMETER0.573 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN
LEFT COUNTERBORE DIAMETER0.458 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEROUND
DISTANCE FROM END TO HOLE CENTER0.546 INCHES NOMINAL IN
HOLE QUANTITY PERPENDICULAR TO AXIS4
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 178220?
178220 is a ADAPTER,STRAIGHT,TUBE TO BOSS manufactured by Hama.
What is the NSN for 178220?
178220 is cataloged in the U.S. Government catalog under NSN 5340-00-786-1404. 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.