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2685-20 — TESTER,PRESSURE,ENG

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2685-20: TESTER,PRESSURE,ENG.

The TESTER,PRESSURE,ENG is a the manufacturer industrial component. Key specifications include special_features: COMPANY ITEM NAME--TESTER, PRESSURE, ENGINE, end_item_identification: B-52 AIRCRAFT, reference_data_and_literature: T.O. 33D2-6-85-1/-4.

This part is cataloged in the U.S. Government catalog under NSN 5325-00-200-7240, 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
2685-20
NSN: 5325-00-200-7240
NIINs: 002007240, 006710923
FSC: 5325 — Fastening Devices
CAGE: 01359 — TRIUMPH THERMAL SYSTEMS - MARYLAND, INC. (USA)
SPECIFICATIONS
special_featuresCOMPANY ITEM NAME--TESTER, PRESSURE, ENGINE
end_item_identificationB-52 AIRCRAFT
reference_data_and_literatureT.O. 33D2-6-85-1/-4
NSN5325-00-200-7240
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2685-20 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL HARDNESS RATING: 64.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
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USAGE DESIGN: INTERNAL
•
STRENGTH RATING: ERR-060
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A576, COMP 1070, 1078, 1080, 1084 OR 1090 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
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OUTSIDE DIAMETER: 1.461 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.050 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.265 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING64.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
USAGE DESIGNINTERNAL
STRENGTH RATINGERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A576, COMP 1070, 1078, 1080, 1084 OR 1090 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER1.461 INCHES NOMINAL IN
MAJOR THICKNESS0.050 INCHES NOMINAL IN
INSIDE DIAMETER1.265 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
SUBSTITUTES & CROSS-REFERENCES 1
RRT137CReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2685-20?
2685-20 is a TESTER,PRESSURE,ENG.
What parts can replace 2685-20?
There is 1 known substitute for 2685-20: RRT137C. Substitute compatibility should be verified for your specific system.
What is the NSN for 2685-20?
2685-20 is cataloged in the U.S. Government catalog under NSN 5325-00-200-7240. 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.