NSN 4520-01-135-8668 · NIIN 011358668 · Part number 972252-2
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · FSC 4520 — Space and Water Heating Equipment · FSG 45 — Plumbing, Heating, and Waste Disposal · CAGE 06481
Government record, cited
NSN 4520-01-135-8668 — this item is cataloged by the U.S. Government under National Stock Number 4520-01-135-8668. Manufacturer of record part number: 972252-2.
Also searched as4520-01-135-8668 ·
4520011358668 ·
NIIN 011358668 ·
01-135-8668 ·
FSC 4520 Space and Water Heating Equipment · CAGE 06481 · 972252-2 · HK1608 · 112300 · HK8102
Nearby stock numbers← 4520-01-135-8333 Control, Fan and Limit
·
4520-01-136-0742 Heating Element, Electrical, Nonim →
Manufacturer of record: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Identification
NSN: 4520-01-135-8668
NIIN: 011358668
FSC: 4520 — Space and Water Heating Equipment
FSG: 45 — Plumbing, Heating, and Waste Disposal
Primary part number: 972252-2
Manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
General Description
The Heating Element,electrical,nonim, cataloged under National Stock Number 4520-01-135-8668, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4520-01-135-8668
Primary Part Number
972252-2
Item Name
Heating Element,electrical,nonim
FSC / FSG
4520 / 45 — Space and Water Heating Equipment
Manufacturer
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Status
ACTIVE
FSC Application Data
INERTIAL NAVIGATION GROUP,OA-8955/ASN-130
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4720-01-213-77161296M52P04POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)General Electric Company Dba Ge Structured Services Div General Electric Structured Services, Lp
3805-01-274-3731112300POSSIBLE MATCH
CUTTING EDGE,SCOOP,LOADER
Possible match (shared part number)A and a Plastics Inc
4520-01-314-880485137-6POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
Possible match (shared part number)Racaar Circuit Industries Inc
5895-01-470-5302112300POSSIBLE MATCH
CONVERTER,SIGNAL DATA
Possible match (shared part number)Setra Systems, Inc. Dba Gems Sensors
5985-01-505-2186112300POSSIBLE MATCH
CIRCULATOR,RADIO FREQUENCY
Possible match (shared part number)Connecticut Microwave Corporation Div Connecticut Microwave Corp
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Reference documents
Reference
Meaning
112300
5/9Secondary reference
E/m Coating Services Div E/m Coating Services North Hollywood
Related Parts
4720-01-213-7716POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
1296M52P04
3805-01-274-3731POSSIBLE MATCH
CUTTING EDGE,SCOOP,LOADER
112300
4520-01-314-8804POSSIBLE MATCH
HEATING ELEMENT,ELECTRICAL,NONIM
85137-6
5895-01-470-5302POSSIBLE MATCH
CONVERTER,SIGNAL DATA
112300
5985-01-505-2186POSSIBLE MATCH
CIRCULATOR,RADIO FREQUENCY
112300
5305-01-679-2797POSSIBLE MATCH
SCREW,SELF-DRILLING
Frequently Asked Questions
What is NSN 4520-01-135-8668?
NSN 4520-01-135-8668 is a Heating Element,electrical,nonim, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
What part numbers are listed for NSN 4520-01-135-8668?
NSN 4520-01-135-8668 has 3 manufacturer part numbers on file: HK1608 (Minco Products Inc), 972252-2 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), HK8102 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
What NSN replaces 4520-01-135-8668?
6 possible matches (shared part number, not a government interchangeability claim): 4720-01-213-7716, 3805-01-274-3731, 4520-01-314-8804. Verify interchangeability with system specifications before substitution.
What are the specifications of 972252-2?
Key specifications for 972252-2: FSC Application Data: INERTIAL NAVIGATION GROUP,OA-8955/ASN-130. 1 specification is documented in the U.S. Government catalog.
Is NSN 4520-01-135-8668 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.