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3126A69 — PLUNGER,QUICK RELEASE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3126A69: PLUNGER,QUICK RELEASE.

The PLUNGER,QUICK RELEASE is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, material: STEEL OVERALL, thread_class: 2A A, thread_length: 0.375 INCHES NOMINAL IN, overall_length: 0.411 INCHES NOMINAL IN, special_features: LOCKING ELEMENT NYLON; NOSE DIAMETER 0.046 X LENGTH 0.036 NOMINAL INCH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-591-7287, 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
3126A69
NSN: 5340-01-591-7287
FSC: 5340 — Hardware, Commercial
CAGE: 3A054 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
shapeRECTANGULAR
materialSTEEL OVERALL
thread_class2A A
thread_length0.375 INCHES NOMINAL IN
overall_length0.411 INCHES NOMINAL IN
special_featuresLOCKING ELEMENT NYLON; NOSE DIAMETER 0.046 X LENGTH 0.036 NOMINAL INCH
thread_directionRIGHT-HAND
surface_treatmentOXIDE BODY
nominal_thread_size0.138 INCHES IN
end_item_identification5895-01-572-2657 CENTRAL, COMMUNICATIONS
thread_quantity_per_inch32
thread_series_designatorUNIFIED NATIONAL COARSE (UNC)
NSN5340-01-591-7287
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3126A69 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
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
SHAPE: RECTANGULAR
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
COLOR: BLACK
•
SURFACE TREATMENT: OXIDE BODY
TECHNICAL CHARACTERISTICS
THREAD LENGTH0.375 INCHES NOMINAL IN
SHAPERECTANGULAR
OVERALL LENGTH0.411 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
COLORBLACK
SPECIAL FEATURESLOCKING ELEMENT NYLON; NOSE DIAMETER 0.046 X LENGTH 0.036 NOMINAL INCH
SURFACE TREATMENTOXIDE BODY
PART NAME ASSIGNED BY CONTROLLING AGENCYSPRING PLUGER WITH ROUND NOSE
THREAD CLASS2A A
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 3126A69?
3126A69 is a PLUNGER,QUICK RELEASE.
What is the NSN for 3126A69?
3126A69 is cataloged in the U.S. Government catalog under NSN 5340-01-591-7287. 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.