PartsTable
Technical Data Sheet
7937-2 ✓ Verified by PartsTable
Hama · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

- neutral grey<br>- to reduce light in case that it is too bright<br>- to reach large camera apertures while taking pictures outside = backround gets hazy<br>- exposure correction 4x = 2 stop values<br>- In case of exposure times longer than 1/30 seconds, water "flows" (if they are shorter, it freezes to ice) This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-011-5543, 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
7937-2
NSN: 5310-00-011-5543
FSC: 5310
CAGE: 57733 — STEWART-WARNER CORPORATION (USA)
SPECIFICATIONS
special_featuresANSULEX LOW PH LIQUID FIRE SUPPRESSANT; POTASSIUM BASE; DESIGNED TO QUICKLY KNOCK DOWN AND CONTROL GREASE FIRES; SHIPPED IN PLASTIC CONTAINERS; STORAGE LIFE 12 YRS
end_item_identificationUSED ON ANSUL R-102 RESTAURANT FIRE SUPPRESSION SYSTEM
content_within_each_unit_package3 GAL
NSN5310-00-011-5543
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7937-2 · Hama ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
MATERIAL: STEEL OVERALL
STYLE DESIGNATOR: FLAT INTERNAL TEETH
MATERIAL THICKNESS: 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
OUTSIDE DIAMETER: 0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
HOLE DIAMETER: 0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
STYLE DESIGNATORFLAT INTERNAL TEETH
MATERIAL THICKNESS0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
HOLE DIAMETER0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
Z00.N5742520145Interchangeable
interchangeable cross-reference
interchangeable
1056H55Interchangeable
interchangeable cross-reference
interchangeable
150674Interchangeable
interchangeable cross-reference
interchangeable
1206Interchangeable
interchangeable cross-reference
interchangeable
221-6Interchangeable
interchangeable cross-reference
interchangeable
551-90394Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7937-2?
7937-2 is a FOAM LIQUID,FIRE EXTINGUISHING manufactured by Hama.
What parts can replace 7937-2?
There are 29 known substitutes for 7937-2: Z00.N5742520145, 1056H55, 150674 and 26 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 7937-2?
7937-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-011-5543. This indicates validated use in U.S. government and defense supply chains.
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