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128HM10176-1 — PLUG,VENT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

128HM10176-1: PLUG,VENT.

The PLUG,VENT is a the manufacturer industrial component. Key specifications include length: 0.906 INCHES NOMINAL IN, material: ALUMINUM ALLOY 7075, thread_class: 3A A, thread_length: 0.618 INCHES NOMINAL IN, inside_diameter: 0.500 INCHES NOMINAL IN, vent_hole_shape: ROUND. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-970-9973, 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
128HM10176-1
NSN: 5340-00-970-9973
FSC: 5340 — Hardware, Commercial
CAGE: 79RG9 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
length0.906 INCHES NOMINAL IN
materialALUMINUM ALLOY 7075
thread_class3A A
thread_length0.618 INCHES NOMINAL IN
inside_diameter0.500 INCHES NOMINAL IN
vent_hole_shapeROUND
outside_diameter0.750 INCHES NOMINAL IN
vent_hole_diameter0.066 INCHES MAXIMUM IN
vent_hole_quantity6
end_connection_typeTHREADED
material_document_and_classificationQQ-A-225/9, T7351 FED SPEC SINGLE MATERIAL RESPONSE
thread_size_and_series/type_designator3/4-16 UNF
NSN5340-00-970-9973
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 128HM10176-1 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
•
VENT HOLE DIAMETER: 0.066 INCHES MAXIMUM IN
•
LENGTH: 0.906 INCHES NOMINAL IN
•
VENT HOLE SHAPE: ROUND
•
THREAD LENGTH: 0.618 INCHES NOMINAL IN
•
END CONNECTION TYPE: THREADED
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/9, T7351 FED SPEC SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 0.750 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
VENT HOLE DIAMETER0.066 INCHES MAXIMUM IN
LENGTH0.906 INCHES NOMINAL IN
VENT HOLE SHAPEROUND
THREAD LENGTH0.618 INCHES NOMINAL IN
END CONNECTION TYPETHREADED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/9, T7351 FED SPEC SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER0.750 INCHES NOMINAL IN
INSIDE DIAMETER0.500 INCHES NOMINAL IN
THREAD CLASS3A A
MATERIALALUMINUM ALLOY 7075
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 128HM10176-1?
128HM10176-1 is a PLUG,VENT.
What is the NSN for 128HM10176-1?
128HM10176-1 is cataloged in the U.S. Government catalog under NSN 5340-00-970-9973. 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.