PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILG16491BTYPE2CLASS3SIZE4Grommet,metallic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5325-00-231-6607 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-231-6607 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-231-6607. Primary manufacturer part number: MILG16491BTYPE2CLASS3SIZE4.
Features
  • Grommet,metallic — FSC 5325
  • Surface Treatment: OXIDE FILM OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND 4 SIZE
  • Material: COPPER ALLOY OVERALL
  • Barrel Outside Diameter: 0.518 INCHES NOMINAL IN
  • Washer Style: SINGLE ROW TOOTHED
  • Flange Style: FLANGE
  • Flange Outside Diameter: 1.050 INCHES NOMINAL IN
Applications
  • Applications requiring Copper Alloy Overall construction
General Description

The Grommet,metallic, cataloged under National Stock Number 5325-00-231-6607, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-231-6607
Primary Part NumberMILG16491BTYPE2CLASS3SIZE4
Item NameGrommet,metallic
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Surface TreatmentOXIDE FILM OVERALL
Nondefinitive Spec/std Data2 TYPE AND 3 CLASS AND 4 SIZE
MaterialCOPPER ALLOY OVERALL
Barrel Outside Diameter0.518 INCHES NOMINAL IN
Washer StyleSINGLE ROW TOOTHED
Flange StyleFLANGE
Flange Outside Diameter1.050 INCHES NOMINAL IN
Barrel Largest Outside Diameter0.630 INCHES NOMINAL IN
Barrel Height0.374 INCHES NOMINAL IN
ColorBLACK OVERALL
Barrel StyleTAPERED ROUND TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
1375-00-055-1153X-5-1 INTERCHANGEABLE
Dynamite
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5340-00-532-92313B1084 INTERCHANGEABLE
Clamp,loop
Napco International Llc Dba Napco International Inc
4730-01-186-47021088511 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
MILG16491BTYPE2CLASS3SIZE4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
7372608 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
1088511 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
X51 Ionia Mfg Co (USA)
8460209 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
Related Parts
1375-00-055-1153INTERCHANGEABLE
DYNAMITE
X-5-1
5340-00-532-9231INTERCHANGEABLE
CLAMP,LOOP
3B1084
4730-01-186-4702INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
1088511

Frequently Asked Questions

What is NSN 5325-00-231-6607?

NSN 5325-00-231-6607 is a Grommet,metallic, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-231-6607?

NSN 5325-00-231-6607 has 5 cross-referenced part numbers: MILG16491BTYPE2CLASS3SIZE4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 7372608 (U S Army Tank Automotive Command Amsta-Im-Mm), 1088511 (Chrysler Realty Company Llc Dba Daimler Chrysler), X51 (Ionia Mfg Co), 8460209 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).

What NSN replaces 5325-00-231-6607?

There are 3 known substitutes for 5325-00-231-6607: 1375-00-055-1153, 5340-00-532-9231, 4730-01-186-4702. Verify interchangeability with system specifications before substitution.

What are the specifications of MILG16491BTYPE2CLASS3SIZE4?

Key specifications for MILG16491BTYPE2CLASS3SIZE4: Surface Treatment: OXIDE FILM OVERALL; Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND 4 SIZE; Material: COPPER ALLOY OVERALL; Barrel Outside Diameter: 0.518 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-231-6607 still in active supply?

NSN 5325-00-231-6607 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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