PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

516-2Filter,air

Watts Regulator Company · NSN 1220-00-956-1170 · FSC 1220 · No Item Name Available
Verified by PartsTable
NSN 1220-00-956-1170 — this item is cataloged by the U.S. Government under National Stock Number 1220-00-956-1170. Primary manufacturer part number: 516-2.
Features
  • Filter,air — FSC 1220
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SPECIAL TEST FEATURES
  • Special Test Features: NAVORD OD36190
  • 2 verified cross-references
  • Primary manufacturer: Watts Regulator Company
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Filter,air, cataloged under National Stock Number 1220-00-956-1170, is classified within Federal Supply Class 1220 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Watts Regulator Company. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1220-00-956-1170
Primary Part Number516-2
Item NameFilter,air
FSC / FSG1220 / 12 — No Item Name Available
ManufacturerWatts Regulator Company
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY SPECIAL TEST FEATURES
Special Test FeaturesNAVORD OD36190
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5930-00-015-979910022655 INTERCHANGEABLE
Switch,double Pole
Us Army Aviation and Missile Command
6625-00-044-47295162 INTERCHANGEABLE
Amplifier,operational
Analog Devices, Inc. Div Corporate Headquarters
5340-00-187-90435-16 2NA INTERCHANGEABLE
Clamp,loop
Brady United States
5310-00-219-7866 INTERCHANGEABLE
Washer,spring Tension
5325-00-298-6563 INTERCHANGEABLE
Ring,retaining
4730-00-334-5449 INTERCHANGEABLE
Cup,grease
5975-01-075-1977F2NY-312BK INTERCHANGEABLE
Hanger,cable
Brady United States
6110-01-161-8057105-162 INTERCHANGEABLE
Regulator,voltage
Prestolite Electric Inc
7530-01-302-55045162 INTERCHANGEABLE
Label
Avery Intl Avery Label Div
6515-01-398-2621 INTERCHANGEABLE
Crutch
Cross-Reference Index
Part NumberManufacturer
516-2 Watts Regulator Company (USA)
C528-02-FRL-AHCAK Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America (USA)
Related Parts
5930-00-015-9799INTERCHANGEABLE
SWITCH,DOUBLE POLE
10022655
6625-00-044-4729INTERCHANGEABLE
AMPLIFIER,OPERATIONAL
5162
5340-00-187-9043INTERCHANGEABLE
CLAMP,LOOP
5-16 2NA
5310-00-219-7866INTERCHANGEABLE
WASHER,SPRING TENSION
5325-00-298-6563INTERCHANGEABLE
RING,RETAINING
4730-00-334-5449INTERCHANGEABLE
CUP,GREASE
5975-01-075-1977INTERCHANGEABLE
HANGER,CABLE
F2NY-312BK
6110-01-161-8057INTERCHANGEABLE
REGULATOR,VOLTAGE
105-162
7530-01-302-5504INTERCHANGEABLE
LABEL
5162
6515-01-398-2621INTERCHANGEABLE
CRUTCH

Frequently Asked Questions

What is NSN 1220-00-956-1170?

NSN 1220-00-956-1170 is a Filter,air, manufactured by Watts Regulator Company, classified under FSC 1220 (No Item Name Available). Status: active.

What are the part numbers for NSN 1220-00-956-1170?

NSN 1220-00-956-1170 has 2 cross-referenced part numbers: 516-2 (Watts Regulator Company), C528-02-FRL-AHCAK (Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America).

What NSN replaces 1220-00-956-1170?

There are 10 known substitutes for 1220-00-956-1170: 5930-00-015-9799, 6625-00-044-4729, 5340-00-187-9043 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 516-2?

Key specifications for 516-2: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY SPECIAL TEST FEATURES; Special Test Features: NAVORD OD36190. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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